n. following the third position; number four in a countable series
n. the musical interval between one note and another four notes away from it
s. coming next after the third and just before the fifth in position or time or degree or magnitude
num. 第四, 四分之一
1. She finished in fourth place in the race.
她在比赛中获得了第四名。
2. My birthday is on the fourth of July.
我的生日是在七月四日。
3. This is the fourth time I have seen that movie.
这是我第四次看那部电影。