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開 means 'open'

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Strokes : 12    Frequency: 123   JLPT: N4    Usefulness: 2    Study set: 2-6    Grade: 3   Intermediate lesson: 9    Beginner lesson: -   Begins 241 words   Used in 526 words   Used in 833 names   Not used as a component
Jōyō (常用)
Common readings
On
   カイ
Kun
   あく to (be) open   あける   ひらく to open (something)   ひらける to open out (eg view)
Additional readings
Kun    ひらき   -びらき
Name    はる   か   ひらき
Components
⿵  門 gate  开 start; initiate  
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Flashcards
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Most useful words by reading
In the most useful 10,000 words in Japanese, 開 is used 31 times, read 3 ways.
Across all words in Japanese, 開 is used 515 times, read 3 ways (with 2 variations).
Showing:
カイ : 404 words FIND ALL
か い し 0
start; commencement; beginning; initiation
(click the word for examples and links)
ひらく : 48 words FIND ALL
ひ ら く 2
'ku' godan verb, intransitive verb, transitive verb
1. to open; to undo; to unseal; to unpack
2. to bloom; to unfold; to spread out
(click the word to view an additional 13 meanings, examples and links)
あく : 43 words FIND ALL
あ く 0
'ku' godan verb, intransitive verb
1. to open (e.g. doors)  (esp. 開く)
2. to open (e.g. business, etc.)  (esp. 開く)
(click the word to view an additional 7 meanings and 3 forms, examples and links)
ひらく (read as びら) : 19 words FIND ALL
や ま び ら き 3
noun
start of the mountain-climbing season
(click the word for examples and links)
ひらく (read as ぴら) : 1 word FIND ALL
1. to do something in public
2. to open
(click the word for examples and links)
An additional あ.ける less common words include 開 but the reading has not yet been categorized.
Quick links
QUICK SEARCH WORD SEARCH KANJI SEARCH COMPONENT SEARCH Find kanji that refer to 開
More information
Wiktionary ⇗ | Unicode.org ⇗ | Google Japan ⇗ | Hanziyuan etymology ⇗
Additional data
Henshall: 261 (originally: 241)  Joy o' Kanji : 241  Key to Kanji: 107 

Cascading kanji view

開
カイ   あく to (be) open   あける    ひらく to open (something)   ひらける to open out (eg view)   
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开
start, initiate   
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一
イチ   イツ   ひとつ    ひと- one   
廾
twenty; two hands   
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十
ジュウ   ジッ   と    とお ten   
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丨
stick   
門
モン   かど gate   
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