ad·ver·sar·y 
(ădvər-sĕr′ē)
(ădvər-sĕr′ē)n. pl. ad·ver·sar·ies
1. An opponent; an enemy.
2. Adversary The Devil; Satan. Often used with the.
[Middle English adversarie, from Latin adversārius, enemy, from adversus, against; see ADVERSE.]
- absolute convergence
- absolute humidity
- absolutely
- absolutely convergent
- absolute magnitude
- absolute music
- absoluteness
- absolute pitch
- absolute temperature
- absolute value
- absolute zero
- absolution
- absolutism
- absolutist
- absolutistic
- absolutive
- absolutize
- absolvable
- absolve
- absolver
- absorb
- absorbability
- absorbable
- absorbedly
- absorbefacient