2. prep. At some time before (the given time), or before the end of a given time interval.
Be back by ten o'clock! We will send it by the first week of July.
3. prep. Indicates the actor in a clause with its verb in the passive voice: Through the action or presence of.
heart
1. n. (anatomy) A muscular organ that pumps blood through the body, traditionally thought to be the seat of emotion.
2. n. Emotions, kindness, moral effort, or spirit in general.
The team lost, but they showed a lot of heart.
3. n. The seat of the affections or sensibilities, collectively or separately, as love, hate, joy, grief, courage, etc.; rarely, the seat of the understanding or will; usually in a good sense; personality.
a good, tender, loving, bad, hard, or selfish heart
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