Verb: pin down pin dawn
- Place in a confining or embarrassing position
"He was pinned down in a difficult situation";
- trap
- Define clearly
"I cannot pin down the rules for this game";
- peg down [informal], nail down, narrow down, narrow, specify
- Attach with or as if with a pin
"pin down a picture";
- pin up
Derived forms: pinning down, pinned down, pins down
See also: nail