1. (verb)happen, hap, go on, pass off, occur, pass, fall out, come about, take place come to pass "What is happening?"; "The meeting took place off without an incidence"; "Nothing occurred that seemed important"
2. (verb)happen, befall, bechance happen, occur, or be the case in the course of events or by chance "It happens that today is my birthday"; "These things befell" (Santayana)
3. (verb)happen chance to be or do something, without intention or causation "I happen to have just what you need!"
4. (verb)happen, materialize, materialise come into being; become reality "Her dream really materialized"
5. (verb)find, happen, chance, bump, encounter come upon, as if by accident; meet with
"We find this idea in Plato"; "I happened upon the most wonderful bakery not very far from here"; "She chanced upon an interesting book in the bookstore the other day"