S: (v) 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)
S: (v) happen (chance to be or do something, without intention or causation) "I happen to have just what you need!"
S: (v) 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"