vt to violate; to ravish.
2. constrain ·vt to bring into a narrow compass; to compress.
3. constrain ·vt to produce in such a manner as to give an unnatural effect; as, a constrained voice.
4. constrain ·vt to hold back by force; to restrain; to repress.
5. constrain ·vt to secure by bonds; to chain; to bond or confine; to hold tightly; to constringe.
6. constrain ·vt to compel; to force; to necessitate; to oblige.