FIFTH


Meaning of FIFTH in English

adj consisting of one of five equal divisions of a thing.

2. fifth ·adj next in order after the fourth;

— the ordinal of five.

3. fifth ·noun the quotient of a unit divided by five; one of five equal parts; a fifth part.

4. fifth ·noun the interval of three tones and a semitone, embracing five diatonic degrees of the scale; the dominant of any key.

Webster English vocab.      Английский словарь Webster.