名詞 over estimate:

1. an appraisal that is too high
   同義詞：overestimate, overestimation, overvaluation, overappraisal
2. a calculation that results in an estimate that is too high
   同義詞：overestimate, overestimation, overrating, overreckoning

動詞 over estimate:

1. make too high an estimate of
   同義詞：overestimate, overrate
2. assign too high a value to
   同義詞：overvalue, overestimate