(computing) A means of representing semistructured data in human-readable text form, mostly composed of symbols and lists and extensively used in the Lisp programming language.

plural of symphonic poem

A multi-venue performing arts centre in Sydney, New South Wales, Australia.

(astronomy) A double star system, in which a cool star is within the nebula of a hot star

plural of cardinal symptom

A greeting card sent to family members of one who has died to express regret.

verse that has a fixed number of syllables per line (though not always the same number of stressed syllables)

plural of syllabic rhyme

plural of Sydney-sider

plural of symmetric function