rho

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rho^¹

/ɹəʊ/ UK
/ɹoʊ/ US

Sounds like roe, Roe, Wroe, row, Rowe (toe–tow merger) · Rhymes with -əʊ

Where it comes from

From the name of the Ancient Greek letter ῥῶ (rhô).

noun rhos

The seventeenth letter of the Modern Greek and Classical alphabets and the nineteenth letter of Old and Ancient. Greek was an exercise in making the familiar strange. Its alphabet mapped onto the Roman alphabet, but only partly so, and often letters did not sound how they looked – a rho (Ρ) was not a P, and an eta (Η) was not an H.
The sensitivity of the option value to the risk-free interest rate.

Rho^²

noun Rhos

Any of a family of GTP-binding proteins

proper noun

A town and comune in the Metropolitan City of Milan, Lombardy, Italy.

Translations

Every language

noun letter of Greek alphabet

Español	ro, rho
한국어	로 ro
日本語	ロー rō
中文	肉 ròu, 若 ruò, 柔 róu
Português	rô, ró
Français	rhô, rho
Deutsch	Rho
Ελληνικά	ρο ro
Русский	ро ro
العربية	رُو rū
עברית	רוֹ ro

Talk about this word

Cite this

MLA

"rho." Wiktionary, via Micwyn, micwyn.com/word/rho. Accessed 6 Nov. 2026.

APA

rho. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/rho

Chicago

"rho." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/rho.

BibTeX

@misc{rho_2026,
  title = {rho},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/rho},
  urldate = {2026-11-06}
}

rho