(specs)
1.
Someone's specs are their glasses. (INFORMAL)
...a young businessman in his specs and suit.
N-PLURAL: also a pair of N
2.
The spec for something, especially a machine or vehicle, is its design and the features included in it. (INFORMAL)
The standard spec includes stainless steel holding tanks.
= specification
N-COUNT
3.
If you do something on spec, you do it hoping to get something that you want, but without being asked or without being certain to get it. (INFORMAL)
When searching for a job Adrian favours networking and writing letters on spec.
PHRASE: PHR after v