I. ˈ ̷ ̷ˌ ̷ ̷ noun
Etymology: dead (I) + lock
1. : a counteraction of things producing entire stoppage : a state of inaction or of neutralization caused by the opposition of persons or of factions (as in a government or in a voting body) : standstill
2. : a device for locking or holding securely together the point and stock rails in a railroad point switch
3. : a lock having a dead bolt — distinguished from spring lock
4. : a tie score of a game or contest
II.
transitive verb
: to bring to a deadlock
intransitive verb
: to reach a deadlock