thirˈtieth adjective

1. Last of thirty
2. Next after the twenty-ninth
3. Equal to one of thirty equal parts

1. A thirtieth part
2. A person or thing in thirtieth position

thirˈtyfold adjective and adverb

thirˈtyish adjective

Somewhere about the age of thirty

Thirty-nine Articles plural noun

The set of doctrines of the Church of England, formally accepted by those taking orders

thirty-second note noun (N American; music)

A demisemiquaver

thirˈtysomething noun (informal)

1. The ages between 30 and 39
2. A person aged between 30 and 39, esp when considered as part of a social group of similarly aged people with specific desires, aims and needs

adjective (informal)

Of, being or for a person aged between 30 and 39

thirty-two-bit or 32-bit adjective (computing)

Denoting a processor handling data consisting of 32 binary digits

thirty-twoˈmo adjective

(for tricesimo secundo, 32mo) of a book, in sheets folded to give 32 leaves (64 pages)

noun (pl thirty-twoˈmos)

A book constructed in this way