Quick answer
開 is the kanji for "Open". The most common reading is ひら.く (hiraku). Mnemonics and example sentences are listed below.
Meaning
Open
Also : Unfold · Unseal
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Readings
kun = Japanese reading · on = Chinese reading
Practice writing
Trace the kanji stroke by stroke with a visual guide.
Stroke Order
12 strokes
Radicals
Memory Aid
The kanji 開 represents 'OPEN'. Think of this shape as a picture representing the concept of open.
On-reading: かい — remember this sound by associating it with open. Kun-reading: ひら.く.
Example Sentences
ファイルが開けません。
ふぁいるがひらけません。
The file won't open.
店は十時に開きます。
みせはじゅうじにひらきます。
The store opens at ten.
Vocabulary using 開
Grammar to study at this level
Last updated Jul 4, 2026
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