Navajo is the most spoken Native American language in the United States, with nearly 170,000 speakers reported near the U.S.-Mexico border region, especially within the Navajo Nation, which spans parts of Arizona, New Mexico, and Utah. According to the 2021 U.S. Census, over 330,000 individuals identify as Navajo. While the majority of speakers reside in the southwestern U.S., smaller populations of Navajo speakers can be found across the country due to relocation, education, or work opportunities.
Navajo, or Diné Bizaad, is a Southern Athabaskan language of the Na-Dené language family. It is a tonal language, meaning that pitch plays a role in distinguishing word meanings. Its grammatical structure is notably different from English, with features such as complex verb morphology, noun incorporation, and subject-object-verb word order. This article is designed to support speech-language pathologists and educators in their work with Navajo-speaking students. By better understanding the Navajo speech and language development as well the cultural background of these students, professionals can provide more accurate assessments and effective intervention strategies.
Interesting Facts About Navajo Speech and Language Development
- The Navajo language is closely related to the Western Apache language as they have similar vocabulary and similar tonal schemes.
- Other Athabaskan languages are in Alaska, Northwestern Canada, and the North American Pacific Coast.
- The Athabaskan family has tones that have evolved to glottalic consonants at the end of morphemes, but the progression of these consonants into tones has not been consistent.
- When World War II occurred, individuals who spoke the Navajo language joined the military and created a code for sending secret messages (Navajo Language, n.d). These individuals were later called ‘code talkers’ who saved many lives through these messages and helped win some of the most decisive battles in the war.
- The Navajo language is classified as vulnerable by the UNESCO Atlas of World Languages in Danger.
- Most of the speakers who are fluent in the Navajo language are older than 40.
Navajo Speech and Language Development
Navajo Consonants in Comparison to English
| Navajo Consonants Not Shared with English | Voiceless aspirated stops & affricates (/tʰ, kʰ, tsʰ, tɬʰ, tʃʰ/) and ejectives (/tʼ, kʼ, tsʼ, tɬʼ, tʃʼ/); velar fricatives /x, ɣ/ and their labialized forms /xʷ, ɣʷ/; voiceless lateral fricative /ɬ/; glottal stop /ʔ/ |
| Consonants Shared With English | /p/, /t/, /k/, /m/, /n/, /s/, /ʃ/, /l/, /w/, /j/, /h/ |
| English Consonants Not Shared with Navajo | English‑only consonants: /b/, /d/, /g/, /v/, /z/, /ʒ/, /tʃ/ (voiced affricate), /dʒ/, /ð/, /θ/, /ɹ/, /ŋ/ |
Navajo Vowels in Comparison to English
The Use of Phonotactic Constraints in Navajo Speakers
- Stem vs. Prefix Structure
- Navajo words are morphologically segmented into a prefix complex and a verb stem.
- Prefixes follow a strict CV template, disallowing onset clusters and codas, while stems permit complex CVVC and CVC syllable shapes (degruyterbrill.com, fernald.domains.swarthmore.edu).
- This often leads Navajo speakers to limit consonant sequences to match the CV pattern when speaking English.
- Sibilant (Coronal) Harmony
- A root cannot contain both [+anterior] sibilants (e.g., /s, ts/) and [−anterior] sibilants (e.g., /ʃ, tʃ/).
- In compounds or across morpheme boundaries, sibilant harmony applies: prefixes adjust to match the nearest root sibilant (degruyterbrill.com).
- English loanwords or blends may be adapted by assimilating sibilants to conform to ancient Navajo harmony rules.
- Onset Glide Epenthesis
- Words beginning with vowels inherently include a glottal stop onset, realized as [ʔV], reinforcing the CV pattern (scribd.com).
- Thus, English words starting with a vowel may be realized with an intrusive glottal onset by Navajo speakers.
- Limitation of Complex Clusters
- Complex consonant clusters are uniquely allowed only within stems; prefixes and word boundaries strictly prohibit them (fernald.domains.swarthmore.edu, scribd.com).
- Navajo speakers often simplify English clusters (e.g., “string” → [sʔitrɪŋ]) by inserting vowels to avoid impermissible sequences.
- Geminate vs. Single Consonants
- All Navajo consonants exhibit inherent length distinctions (gemination), especially in stops and affricates (en.wikipedia.org, en.wikipedia.org).
- Length distinctions may be transferred into English as consonant prolongation (e.g., “stop” pronounced with a noticeably longer /t/).
- Restricted Distribution of Laryngeal Contrasts
- The three-way contrast in Navajo stops and affricates—plain, aspirated, ejective—occurs only at the start of stems, not in prefixes or final positions (en.wikipedia.org).
- Navajo speakers may de-aspirate or avoid ejective segments in positions where English would permit plain aspirates, affecting their accent in English.
Language Specific Differences Between English and Navajo
Navajo and English differ significantly in their grammar and structure, especially due to Navajo’s status as a polysynthetic, verb‑heavy language. Navajo typically follows a Subject–Object–Verb (SOV) order and expresses much of its meaning through verb morphology rather than independent adjectives or nouns. It lacks articles and has minimal morphological plural marking, relying instead on verb prefixes and context. English, in contrast, uses a fixed SVO order, explicit articles, plural forms on nouns, and limited verb inflection.
| Language Features | Navajo | English |
|---|---|---|
| Sentence Word Order | Usually S–O–V, but order can swap based on animacy hierarchy; verbs carry subject/object markers (mustgo.com, digitalrepository.unm.edu) | Fixed S–V–O |
| Adjectives/Noun Modifiers | No separate adjectives; meanings expressed via verb stems; noun modifiers typically follow nouns as postpositions | Adjectives precede nouns |
| Possessives | Indicated by possessive prefixes on nouns (e.g., shimá, nimá) | Use possessive determiners (my, your, etc.) without prefixes |
| Possessive Pronouns | As prefixes on nouns (e.g., his mother = bimá) | Stand-alone pronouns like mine, yours |
| Verb inflection | Extremely rich: verbs inflect for subject, object, aspect/mode via complex prefix templatic morphology | Light inflection; most tense/aspect via auxiliary verbs |
| Pronouns | Subject/object are marked in verb prefixes; independent pronouns exist but less used, as verb encodes participants | Free-standing pronouns (I, you, etc.) |
| Pronoun Gender | No gender distinction in pronouns | He/she pronouns distinguish gender |
| Subjects of Sentences | Often omitted; verb prefix indicates subject and object | Subjects required (I see, he runs, etc.) |
| Regular Past Tense | Expressed via perfective mode in verb stem, not a separate tense form | Add –ed to form past (walked) |
| Irregular Past Tense | Not applicable—past conveyed by stem mode, not by irregular forms | Irregular verbs (went, saw) |
| Negatives | Negative formed by circumfix doo‑ … ‑da around verb | Use “do‑not” auxiliary or contracted “don’t” |
| Double Negatives | Not typical; negation is handled once via circumfix | Generally ungrammatical |
| Question formation | No subject‑auxiliary inversion; questions indicated by intonation and particles, and verb inflection remains in place | Use auxiliary “do” and inversion (Do you want?) |
| Definite Articles | No articles; specificity is inferred from context or morphology | Use “the” |
| Indefinite Articles | No equivalent; nouns appear without markers | Use “a”/“an” |
| Prepositions | Mostly postpositions after noun and marked via verb morphology | Separate prepositions precede noun phrases |
| Present Progressive Verb Form | Progressive mode expressed through verb stem/affix, not periphrastic be + –ing | Use “be + V‑ing” |
| Modal Verbs | Expressed via mode/aspect prefixes on main verbs, not separate modal verbs | Use standalone modals (can, must, will) |
| Copula/”To Be” Verbs | No separate copula; state expressed via stative verb forms and mode | Use “is/am/are” |
| Auxiliary Verbs | Not used; functions embedded in verb stems via prefixes | Use auxiliaries (have, do, be) |
| Passive Voice | No grammatical passive; roles indicated via animacy hierarchy and verbal prefixes | Use “be + past participle” |
| Direct Object Pronouns | Marked as prefixes on the verb stem (e.g., bi‑ for third person obj) | Use separate pronouns post-verb (me, him, them) |
| Conjunctions | Conjunctions exist but simple connectors; much coordination via verb morphology | Use “and, but, because, that” |
| Plurals | No plural suffix on nouns; plurality indicated via distributive prefix (da‑) on verb or context | Add “‑s” or “‑es” to nouns |
Additional Indigenous and Native American Languages
This is just one of the Indigenous and Native American languages that we’ve documented in the World Language Library. Click below to explore diverse languages from North, Central, and South America.
| Navajo | Yupik | Chinuk Wawa (trade pidgin) |
| Mixtec | Zapotec | Nahuatl |
| K’iche, Kaqchikel (Mayan languages) |
Sources:
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Courtney, E. H., & Saville-Troike, M. (2002). Learning to construct verbs in Navajo and Quechua. Journal of Child Language, 29(3).
Henderson, D. E. (2023). Diné Bizaad at a Glance. Language, Speech, and Hearing Services in School, 54(2).
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McDonough, Joyce. The Navajo Sound System. Kluwer Academic Publishers, 2003. (Referenced within Wikipedia). (en.wikipedia.org)
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Navajo Language. Wikipedia
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“Navajo.” MustGo World Languages, n.d. www.mustgo.com
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Wikipedia. “Consonant harmony.” Wikipedia, Wikimedia Foundation, last month. (en.wikipedia.org)
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Contributors:
A special thanks to Anna Bujak with Concordia University- Wisconsin for data compilation and research that went into this article!
