Vocabulary consisting only from characters you are able to read
計る
hakaru
(1)to measure, to weigh, to survey, to time (sound, gauge, estimate), (2)to conjecture, to infer, to surmise godan, verb, vtrans
使う
tsukau
(1)to use (a thing, method, etc.)/to make use of/to put to use/ (2)to use (a person, animal, puppet, etc.)/to employ/to handle/to manage/to manipulate/ (3)to use (time, money, etc.)/to spend/to consu godan, jlpt5, leda1, verb, vtrans