Yes, bucks is a Scrabble word!

Verb

1. To strive with determination

2. Resist

3. Move quickly and violently

4. Jump vertically, with legs stiff and back arched

Noun

1. A gymnastic horse without pommels and with one end elongated; used lengthwise for vaulting

2. A piece of paper money worth one dollar

3. United States author whose novels drew on her experiences as a missionary in China (1892-1973)

4. A framework for holding wood that is being sawed

5. Mature male of various mammals (especially deer or antelope)