甲 means 'first'

Animation / stroke order not available.
Strokes : 5    Frequency: 882   JLPT: N1    Usefulness: 5    Study set: 5-7    Grade: 8   Intermediate lesson: -    Beginner lesson: -   Begins 84 words   Used in 169 words   Used in 900 names   Component in 14 kanji (2 Jōyō)
Jōyō (常用)
   コウ   カン
Kun    きのえ armor, high (voice), A grade, first class, former, instep, carapace
Name    かぶと   き   まさ   まさる
the first of the ten heavenly stems
⿻   sun; day   stick  
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In the most useful 10,000 words in Japanese, 甲 is used 2 times, read 2 ways.
Across all words in Japanese, 甲 is used 120 times, read 3 ways (with 2 variations).
コウ : 96 words FIND ALL
armored; armoured
(click the word for examples and links)
カン : 17 words FIND ALL
deck (of a ship)
(click the word to view an additional 1 reading and 2 forms, examples and links)
コウ (read as ごう) : 1 word FIND ALL
back  (obscure term)
(click the word for examples and links)
きのえ : 2 words FIND ALL
first sign of the Chinese calendar  (see also: 十干)
(click the word for examples and links)
かぶと: 4 words. FIND ALL
horseshoe crab  (often written with kana only)
(click the word to view an additional 4 forms, examples and links)
An additional one less common word includes 甲 but the reading has not yet been categorized.
Henshall: 1243  Joy o' Kanji : 1243  Key to Kanji:

Cascading kanji view

コウ   カン    #1, first; armor   
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