Next in order after the third; the ordinal of four.

第四的。

Designation one of the four equal parts of anything.

四分之一。

One of four equal parts of anything; a quarter.

四分之一份。

The one next in order after the third.

第四。

Interval between the tonic and the fourth tone of a diatonic scale.

【乐】完全四度音程。

Tone at the end of this interval; subdominant.

【乐】第四音；次属音。

Two tones, a fourth apart, sounded at once.

【乐】四度和音。

Interval between any tone of a diatonic scale and the third tone above it.

【乐】四度音程。