fourth
— Adjective
– English
~ coming next after the third and just before the fifth in position or time or degree or magnitude; "the quaternary period of geologic time extends from the end of the tertiary period to the present"
forty-fourth
— Adjective
– English
~ the ordinal number of forty-four in counting order
fourth
— Noun
– English
~ one of four equal parts; "a quarter of a pound"
fourth deck
— Noun
– English
~ the fourth or lowest deck
fourth dimension
— Noun
– English
~ the fourth coordinate that is required (along with three spatial dimensions) to specify a physical event
fourth
— Noun
– English
~ the musical interval between one note and another four notes away from it
fourth estate
— Noun
– English
~ the press, including journalists, newspaper writers, photographers
fourth
— Noun
– English
~ following the third position; number four in a countable series
Fourth Crusade
— Noun
– English
~ a Crusade from 1202 to 1204 that was diverted into a battle for Constantinople and failed to recapture Jerusalem
fourthly
— Adverb
– English
~ in the fourth place; "fourthly, you must pay the rent on the first of the month"