1 for fastening things together
VERB + BOLT tighten (up) | loosen | undo, unscrew
PHRASES nuts and bolts
2 for fastening a door
VERB + BOLT draw back, pull back, slide back | push home, slide home She closed the door quickly and pushed the bolts home.
ADV. firmly, securely Make sure that the rails are securely bolted in place. | together The two parts are bolted together.
PREP. to The yacht's keel is bolted to the hull.