1. (n.) An important event; an occurrence; an incident.

2. (n.) A favorable opportunity; a convenient or timely chance; convenience.

3. (n.) An occurrence or condition of affairs which brings with it some unlooked-for event; that which incidentally brings to pass an event, without being its efficient cause or sufficient reason; accidental or incidental cause.

4. (n.) Need; exigency; requirement; necessity; as, I have no occasion for firearms.

5. (n.) A reason or excuse; a motive; a persuasion.

6. (v. t.) To give occasion to; to cause; to produce; to induce; as, to occasion anxiety.