Esperanto

Pronoun

kio ‎(plural kioj, accusative singular kion, accusative plural kiojn)

1. what (the interrogative and relative correlative of objects)
2. which

   Mi daŭrigis mian laboron, ĝis kiam iu knabo aŭ virino diris "bagus, bagus", kio signifas "tre bela".

   I continued my work, until some boy or woman said "bagus, bagus", which means "very pretty".

Derived terms

• kio ajn ‎(“whatever”)

Usage notes

• Like other correlatives of objects, and unlike English what, kio always functions as a noun, never an adjective.
• The plural forms are seldom used.

Hawaiian

Etymology

From Proto-Malayo-Polynesian (compare Indonesian tiram, Maori tio).

Noun

kio

1. mollusc
2. oyster

Swahili

kio

Verb

kio

1. mirror (of an event, activity, behaviour.. to be identical to, be a copy of)

Volapük

Adverb

kio

1. how (used as modifier to indicate surprise, delight or other strong feeling)