Definition of 一 (いち)
いち
                        一
いち
ichi
Common word
numeric, prefix
1.
one(壱, 弌 and 壹 are used in legal documents)
no-adjective, suffix
2.
best
no-adjective
3.
first, foremost
noun
4.
beginning, start
noun (prefix)
5.
a (single), one (of many)(before a noun)
noun
6.
ace (playing card)
See also:エース
7.
bottom string (on a shamisen, etc.)
Other readings:
                1【いち】
、壱【いち】
、弌【いち】
、壹【いち】[1]
                Notes:
                - word containing out-dated kanji
 
Related Kanji
| 一 | one, one radical (no.1) | 
| 壱 | one (in documents) | 
| 弌 | one | 
| 壹 | number one |