1fourth 
/ˈfoɚθ/ noun
plural fourths /ˈfoɚθ/ noun 1 [singular] : number four in a series
▪ I'll be flying in on the fourth. [=the fourth day of the month] ▪ He got a base hit in the fourth. [=the fourth inning] 2 [count] : one of four equal parts of something
▪ cut the cake into fourths ▪ She drank a fourth of the bottle. 3 [noncount] : the fourth forward gear or speed of a car, truck, etc.
▪ He shifted into fourth. 4 the Fourth : independence day
▪ watching fireworks on the Fourth
▪ I'll be flying in on the fourth. [=the fourth day of the month] ▪ He got a base hit in the fourth. [=the fourth inning]
▪ cut the cake into fourths ▪ She drank a fourth of the bottle.
▪ He shifted into fourth.
▪ watching fireworks on the Fourth
