返す, 反す, かえす
Conjugated: 返します
Godan verb, Transitive, See 帰す・かえす, esp. 返す
1. to return (something), to restore, to put back
2. to turn over, to turn upside down, to overturn
3. to pay back, to retaliate, to reciprocate
4. to respond (with), to retort, to reply, to say back
Auxiliary verb, after the -masu stem of a verb
5. to do ... back (e.g. speak back, throw back)
お金は明日返すよ。