our troops can pin down the enemy : CONFINE, TRAP, hem in, corner, close in, shut in, hedge in, pen in, restrain, entangle, enmesh, immobilize.
she tried to pin him down to a plan : CONSTRAIN, make someone commit themselves, pressure, pressurize, tie down, nail down.
it evoked a memory but he couldn't pin it down : DEFINE, put one's finger on, put into words, express, name, specify, identify, pinpoint, place.
2192; headword