"locking" in the noun sense
1. locking, lockup
the act of locking something up to protect it
"locking" in the verb sense
1. lock
fasten with a lock
"lock the bike to the fence"
2. engage, mesh, lock, operate
keep engaged
"engaged the gears"
3. lock
become rigid or immoveable
"The therapist noticed that the patient's knees tended to lock in this exercise"
4. lock, interlock, interlace
hold in a locking position
"He locked his hands around her neck"
5. interlock, lock
become engaged or intermeshed with one another
"They were locked in embrace"
6. lock
hold fast (in a certain state
"He was locked in a laughing fit"
7. lock in, lock away, lock, put away, shut up, shut away, lock up
place in a place where something cannot be removed or someone cannot escape
"The parents locked her daughter up for the weekend"
"She locked her jewels in the safe"
8. lock
pass by means through a lock in a waterway
9. lock
build locks in order to facilitate the navigation of vessels
Source: WordNet® (An amazing lexical database of English)
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