1. tense_up - verb
· become tense, nervous, or uneasy; "He tensed up when he saw his opponent enter the room"
Synonym(s): tense
Hypernym(s): change_state, turn
2. tense_up - verb
· cause to be tense and uneasy or nervous or anxious; "he got a phone call from his lawyer that tensed him up"
Hypernym(s): affect
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