In obsolete transitive terms the difference between account and act
is that
account is to present an account of; to answer for, to justify while
act is to move to action; to actuate; to animate.
In transitive terms the difference between account and act
is that
account is to estimate, consider (something to be as described) while
act is to feign.
In intransitive terms the difference between account and act
is that
account is to cause the death, capture, or destruction of someone or something (+ {{term|for}}) while
act is to behave in a certain way.
As nouns the difference between account and act
is that
account is a registry of pecuniary transactions; a written or printed statement of business dealings or debts and credits, and also of other things subjected to a reckoning or review while
ACT is a certain standardized college admissions test in the United States, originally called the {{term||American College Test}}.
As verbs the difference between account and act
is that
account is to provide explanation while
act is to do something.
As a proper noun ACT is
initialism of Australian Capital Territory|lang=en, a federal territory of Australia.