Wordnet 3.0
VERB (1)
1. 
 place in a place where something cannot be removed or someone cannot escape; 
- Example: "The parents locked her daughter up for the weekend"- Example: "She locked her jewels in the safe"[syn: lock in, lock away, lock, put away, shut up, shut away, lock up]
WordNet (r) 3.0 (2006):
shut away
    v 1: 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" [syn:
         lock in, lock away, lock, put away, shut up,
         shut away, lock up]