Usage Contextslangsocial

Note: Meaning is trend-dependent and can shift quickly.

Sigma

"Sigma" in cmn

西格瑪 /西格玛

(letter of the Greek alphabet)

西格馬 /西格马

xīgémǎ

(letter of the Greek alphabet)

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.