"hinges" in the noun sense
1. hinge, flexible joint
a joint that holds two parts together so that one can swing relative to the other
a circumstance upon which subsequent events depend
"his absence is the hinge of our plan"
"hinges" in the verb sense
attach with a hinge
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License