Le·on·i·das I 
(lē-ŏnĭ-dəs) Died 480 BC.
(lē-ŏnĭ-dəs) Died 480 BC. Spartan king (490-480) who led a small force against a huge Persian army at the pass of Thermopylae (480). All of the Spartans, including Leonidas, were killed.
- submissively
- submissiveness
- submit
- submittal
- submitter
- submontane
- submucosa
- submucosal
- submucosally
- submultiple
- subnet
- subnormal
- subnormality
- subnotebook
- subnuclear
- suboceanic
- suborbital
- suborder
- subordinate
- subordinate clause
- subordinate conjunction
- subordinately
- subordinateness
- subordination
- subordinative