happen

verb

1. come to pass

   verb.change

   Examples

   What is happening?

   Synonyms come about fall out go on hap occur pass pass off take place

   Source: WordNet 3.0

2. happen, occur, or be the case in the course of events or by chance

   verb.change

   Examples

   It happens that today is my birthday.

   Synonyms bechance befall

   Source: WordNet 3.0

3. chance to be or do something, without intention or causation

   verb.social

   Examples

   I happen to have just what you need!

   Source: WordNet 3.0

4. come into being; become reality

   verb.change

   Synonyms materialise materialize

   Antonyms dematerialise dematerialize

   Source: WordNet 3.0

5. come upon, as if by accident; meet with

   verb.possession

   Examples

   I happened upon the most wonderful bakery not very far from here.

   Synonyms bump chance encounter find

   Source: WordNet 3.0

6. To come by chance; to come without previous expectation; to fall out.

   verb

   Source: webster1913