account for

verb

1. to give reasons for (an event, act, etc)

2. to make or provide a reckoning of (expenditure, payments, etc)

3. to be responsible for destroying, killing, or putting (people, aircraft, etc) out of action

Idioms and Phrases

Be the determining factor in; cause. For example, The heat wave accounts for all this food spoilage , or Icy roads account for the increase in accidents .

Explain or justify, as in Jane was upset because her son couldn't account for the three hours between his last class and his arrival at home . Both of these related usages are derived from the literal meaning of the phrase, that is, “make a reckoning of an account.” [Second half of 1700s]