Chain \Chain\, v. t. [imp. p. p. Chained (ch[=a]nd); p. pr. & vb. n. Chaining.]

1. To fasten, bind, or connect with a chain; to fasten or bind securely, as with a chain; as, to chain a bulldog.

Chained behind the hostile car. --Prior.

2. To keep in slavery; to enslave.

And which more blest? who chained his country, say Or he whose virtue sighed to lose a day? --Pope.

3. To unite closely and strongly.

And in this vow do chain my soul to thine. --Shak.

4. (Surveying) To measure with the chain.

5. To protect by drawing a chain across, as a harbor.

Source: Webster's Revised Unabridged Dictionary (1913)