v. a·ligned, a·lign·ing, a·ligns
1. To arrange in a line or so as to be parallel: align the tops of a row of pictures; aligned the car with the curb.
2. To adjust (parts of a mechanism, for example) to produce a proper relationship or orientation: aligning the wheels of a truck.
3. To ally (oneself, for example) with one side of an argument or cause: aligned themselves with the free traders.
1. To adhere to a prescribed course of action.
2. To move or be adjusted into proper relationship or orientation.
[French aligner, from Old French : a-, to (from Latin ad-; see AD-) + ligne, line (from Latin līnea; see LINE1).]
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