Thirtieth

/ˈθɜrtiəθ/

Meaning & Definition

noun

the person or thing in the thirtieth position.

The thirtieth in line was starting to get impatient.

one of thirty equal parts of a whole.

Each thirtieth of the budget was allocated to different departments.

adjective

constituting number thirty in a sequence; 30th.

She finished in thirtieth place in the marathon.

pertaining to one of thirty equal parts.

He took a thirtieth of the entire cake.

From Old English 'þrittiga', meaning 'thirty', with the ordinal suffix '-th'.

thirtieth anniversary

The 30th year of a married couple's union.

thirtieth birthday

A celebration marking the 30th year since birth.

thirty

The cardinal number equivalent to 30.

thirtieths

Plural form referring to multiple parts of thirty.