Verb lock in has 2 senses
  1. lock in, seal in - close with or as if with a tight seal; "This vacuum pack locks in the flavor!"
    --1 is one way to confine
    Sample sentences:
    Somebody ----s something
    Something ----s something
  2. 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"
    --2 is one way to confine
    Sample sentences:
    Somebody ----s something
    Somebody ----s somebody
    Somebody ----s somebody PP
    Somebody ----s something PP
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