- up front
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1. mod. at the beginning; in advance.□ She wanted $200 up front.□ The more you pay up front, the less you’ll have to finance.2. mod. open; honest; forthcoming.□ She is a very up front gal—trust her.□ I wish the salesman had been more up front about it.3. mod. in the forefront; under fire (at the front).□ You guys who are up front are gonna get the most fire.□ You two go up front and see if you can help.
Dictionary of American slang and colloquial expressions. 2015.