Laxi Dictionary

American Dictionary

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Definition thirtieth in American English

thirtieth number

number
/ˈθɜrtiəθ/
1

in the place or position counted as number 30

Example

her thirtieth birthday

Synonyms and related words
billionth eighth eleventh
2

one of 30 equal parts of something

Synonyms and related words
and billionth common denominator
Definition thirtieth in American English