spent 
(spĕnt)
(spĕnt)v.
Past tense and past participle of spend.
adj.
1. Having been put to use and therefore unavailable for use: spent shell casings.
2. Depleted of energy, force, or strength; exhausted: spent laborers.
3. Depleted or nearly depleted of fissionable material: spent nuclear fuel.
- behavioral
- behavioral genetics
- behaviorally
- behavioral medicine
- behavioral psychophysics
- behavioral science
- behavioral scientist
- behaviorism
- behaviorist
- behavioristic
- behavior modification
- behavior modifier
- behavior therapist
- behavior therapy
- behaviour
- behead
- beheld
- behemoth
- behest
- behind
- behind back
- behind bars
- behindhand
- behind (one's) back
- behind one's back