tense up
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Verb | 1. | tense up - become tense, nervous, or uneasy; "He tensed up when he saw his opponent enter the room" change state, turn - undergo a transformation or a change of position or action; "We turned from Socialism to Capitalism"; "The people turned against the President when he stole the election" |
2. | tense up - cause to be tense and uneasy or nervous or anxious; "he got a phone call from his lawyer that tensed him up" affect - act physically on; have an effect upon; "the medicine affects my heart rate" |
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