Definition of the third degreeinformal
- The police gave him the third degree.
- Mom gave me the third degree when I got home late.
: being next after the second in place or time
: ranking next after the second of a grade or degree in authority or precedence
: being the forward speed or gear next higher than second especially in a motor vehicle
: one that is number three in a series — see Table of Numbers
: one that is next after second in rank, position, authority, or precedence
: one of three equal parts of something
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