Dictionary-enhanced plural guide
What is the Plural of “Tooth”?
Learn the singular and plural noun forms, the rule behind the plural, and examples that show the form in context.
Singular and Plural Form of Tooth
Tooth is the singular noun form. Teeth is the plural form.
Dictionary meaning: One of the hard pieces inside your mouth used for eating and chewing.
Why is the Plural of Tooth “teeth”?
The Irregular Plural Rule for Tooth
This noun has an irregular plural form that does not follow standard English pluralization rules. Irregular form from corpus
Plural pattern: irregular.
How to Remember the Plural of Tooth
“tooth” → “teeth” is an irregular plural — there is no rule, so memorise the pair as a whole. Try writing it in 3 sentences today.
A common slip-up: Some learners say 'booth' with incorrect vowel or stress on wrong syllable..
Singular vs Plural Examples with Tooth
See tooth and teeth used in real sentences side by side.
- My baby tooth is loose. A1
- The dentist examined my tooth carefully. A1
- You should brush each tooth twice a day. A2
Common Plural Mistakes with Tooth
Wrong: I have three tooths missing.
Correct: I have three teeth missing.
Tooth is irregular plural: teeth, not tooths.
Wrong: The tooth are white.
Correct: The teeth are white.
Subject-verb agreement: plural 'teeth' requires plural 'are' verb.
How to Pronounce Tooth and Teeth
Initial 'th' is a voiceless fricative; rhymes with 'soothe' not 'booth'.
Other Words With the Same Plural Pattern as Tooth
These nouns follow the same irregular rule. Click any word to see its plural page.
A young boy or girl who is not yet an adult.
the two parts at the bottom of your legs that touch the…
A tiny insect that lives around food and moves very fast.
One of two equal parts that make up something complete.
A grown-up male person. A man is an adult male, not a…
The ability to remember things from the past, or the thought you…
One human; a single individual.
Money that a person earns from their job, paid regularly by their…
Origin and Etymology of Tooth
Old English 'tōþ', from Proto-Germanic *tanþaz, related to 'tooth' across Germanic languages.
Cultural note: Tooth loss is a common health concern worldwide. Baby teeth fall out naturally as permanent teeth grow.
Frequently Asked Questions About the Plural of Tooth
What is the plural of “tooth”?
The plural of “tooth” is “teeth”.
Is “teeth” regular or irregular?
This page classifies it as irregular based on the available plural data.