Chain, v. t. [imp. p. p.Chained (chānd); 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.