- Any of various predominantly marine algae of the division Rhodophyta, characteristically red or reddish in color. Often used in the plural.红藻：海藻中占绝大多数的多种红藻科海藻之一，特点是红色或带有红色。常用复数
- streetscape
- streetscapes
- street-smart
- street smarts
- street theater
- streetwalker
- streetwise
- street–smart
- streig-
- strength
- strengthen
- strengthened
- strengthening
- strengthens
- strengths
- strenuous
- strep
- streps
- strep sore throat
- strep throat
- strepto-
- streptobacillus
- streptocarpus
- streptocarpuses
- streptococcal