どの

ど

の

Meanings

pre-noun adjectival

usually written using kana alone

Pre-noun adjectival (rentaishi) used to ask which one(s) among a set of three or more items. For two items, どちら or どっち is used instead.

どの〈物もの〉which (item), when choosing among three or more
どの服ふくを買かいますか。
Which clothes will you buy?
どのくらいhow much / how long (asking about degree or extent)
会かい社しゃまでどのくらいかかりますか。
How long does it take to get to the office?
どの〈場ば所しょ〉which place, when there are three or more options
どの駅えきで降おりますか。
Which station will you get off at?

どちらN5
どちら asks 'which' when choosing between only two items, while どの asks 'which' among three or more.
このN5
この means 'this', referring to something near the speaker, while どの is used to ask 'which' among three or more items.
そのN5
その means 'that', referring to something near the listener, while どの is used to ask 'which' among three or more items.
あのN5
あの points to a specific distant thing, while 何の (どの) is the interrogative form asking 'which one' among a set.

どのUsage100%
Standard kana spelling; the word is usually written in kana.
何どの
rarely-used kanji form
Rarely used kanji form; learners should use the kana spelling.

The historical derivation is uncertain; it functions as the interrogative counterpart to the demonstrative pre-noun adjectivals この, その, and あの.