Then \Then\, conj.

1. Than. [Obs.]

--Spenser.

2. In that case; in consequence; as a consequence; therefore; for this reason.

If all this be so, then man has a natural freedom. --Locke.

Now, then, be all thy weighty cares away. --Dryden.

Syn: Therefore.

Usage: Then, Therefore. Both these words are used in reasoning; but therefore takes the lead, while then is rather subordinate or incidental. Therefore states reasons and draws inferences in form; then, to a great extent, takes the point as proved, and passes on to the general conclusion. ``Therefore being justified by

1. ``So then faith cometh by hearing, and hearing by the word of God.'' --Rom. x. 17.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Then \Then\ ([th][e^]n), adv. [Originally the same word as than. See Than.]

1. At that time (referring to a time specified, either past or future).

And the Canaanite was then in the land. --Gen. xii. 6.

Now I know in part; but then shall I know even as also I am known. --1 Cor. xiii. 12.

2. Soon afterward, or immediately; next; afterward.

First be reconciled to thy brother, and then come and offer thy gift. --Matt. v. 24.

3. At another time; later; again.

One while the master is not aware of what is done, and then in other cases it may fall out to be own act. --L'Estrange.

By then.
   (a) By that time.
   (b) By the time that. [Obs.]

But that opinion, I trust, by then this following argument hath been well read, will be left for one of the mysteries of an indulgent Antichrist. --Milton.

Now and then. See under Now, adv.

Till then, until that time; until the time mentioned. --Milton.

Note: Then is often used elliptically, like an adjective, for then existing; as, the then administration.

Source: Webster's Revised Unabridged Dictionary (1913)