Literally, a coming together; a meeting. Hence,

Fitness; suitableness; propriety; adaptation of one thing to another, or to circumstances.

Commodiousness; ease; freedom from difficulty. Every man must want something for the convenience of his life. There is another convenience in this method.

That which gives ease; accommodation; that which is suited to wants or necessity A pair of spectacles is a great convenience in old age.

Fitness of time or place.