Which

"Which" in grc

ποῖος

poîos

((interrogative) what, of those mentioned or implied)

πότερος

póteros

((interrogative) what, of those mentioned or implied)

τί

tí

((interrogative) what, of those mentioned or implied)

τίς

tís

((interrogative) what, of those mentioned or implied)

ποῖος

poîos

((interrogative) what one or ones)

πότερος

póteros

((interrogative) what one or ones)

τί

tí

((interrogative) what one or ones)

τίς

tís

((interrogative) what one or ones)

Which vs That: Restrictive and Nonrestrictive Clauses

Use which and that with confidence in formal and everyday writing.

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