Hap·pen v. i. [imp. & p. p. Happened p. pr. & vb. n. Happening.]
1. To come by chance; to come without previous expectation; to fall out.
There shall no evil happen to the just. --Prov. xii. 21.
2. To take place; to occur.
All these things which had happened. --Luke xxiv. 14.
To happen on, to meet with; to fall or light upon. “I have happened on some other accounts.” --Graunt.
To happen in, to make a casual call. [Colloq.]
adj : taking place; "the parade is still happening"
n : an event that happens [syn: occurrence, natural event]