Meaning of ONSET in English

ONSET

noun a setting about; a beginning.

2. onset ·vt to set about; to begin.

3. onset ·vt to assault; to set upon.

4. onset ·noun anything set on, or added, as an ornament or as a useful appendage.

5. onset ·noun a rushing or setting upon; an attack; an assault; a storming; especially, the assault of an army.

Webster English vocab.      Английский словарь Webster.