Com*bine" (?), v. t. [imp. & p. p. Combined (?); p. pr. & vb. n. Combining.] [LL. combinare, combinatum; L. com- + binus, pl. bini, two and two, double: cf. F. combiner. See Binary.] 1. To unite or join; to link closely together; to bring into harmonious union; to cause or unite so as to form a homogeneous substance, as by chemical union.

So fitly them in pairs thou hast combined.
Milton.

Friendship is the cement which really combines mankind.
Dr. H. More.

And all combined, save what thou must combine
By holy marriage.
Shak.

Earthly sounds, though sweet and well combined.
Cowper.

2. To bind; to hold by a moral tie. [Obs.]

I am combined by a sacred vow.
Shak.

Com*bine", v. i. 1. To form a union; to agree; to coalesce; to confederate.

You with your foes combine,
And seem your own destruction to design
Dryden.

So sweet did harp and voice combine.
Sir W. Scott.

2. To unite by affinity or natural attraction; as, two substances, which will not combine of themselves, may be made to combine by the intervention of a third.

3. (Card Playing) In the game of casino, to play a card which will take two or more cards whose aggregate number of pips equals those of the card played.

• (transitive) to bring two or more things or activities together
       *Combine the milk and the hot water in a large bowl.
       *I'm combining business and pleasure on this trip.
  
• (intransitive) to have two or more things or properties
       *Joe combines the intelligence of a rock with the honesty of a politician.
  
• to join together, to unite
       *The two of us combined should be able to beat him.
  
• short for combine harvester
       *We can't finish harvesting because our combine is stuck in the mud.