Verb (5-dan, く, intransitive)
1. to float
氷がどうして浮くのか気になって調べる人間は多いか？Are there many people who are curious about why ice floats and look into it?
2. to become merry; to be cheerful
尋ねると、彼は浮かない口調でつぶやいた。When I asked, he muttered in a glum tone.
3. to become loose; to become unsteady
4. to feel out of it; to be cut off (e.g. from those around you); to feel out of place
私みたいな人が行っても浮いちゃいそうだよね。Someone like me would probably feel out of place if I went.
5. to be frivolous; to be uncertain
6. to have (time, money, etc.) left over; to be saved (e.g. money)
直接の取引ならその分のコストが浮くということか。So you mean that if it's a direct transaction, the cost for that portion is saved?
7. to have no basis; to be unreliable