数詞 “one”
- 一(いち)サインアップして、例文の翻訳と各単語の一言語の定義をご覧ください。 
 She has one cat that follows her everywhere. 
代名詞 “one”
 singular one, plural ones
- 一つ(ひとつ)Out of all the puppies, the littlest one stole my heart. 
- だれか(特定されていない人)One should always try to be kind, for one never knows what someone else is going through. 
名詞 “one”
- 1(数字としてのシンボル)After learning to write, the first digit she mastered was the number one. 
- 一ドル札(いちドルさつ)Can you break this twenty? I need a few ones for the vending machine. 
- 一時(いちじ)The meeting is scheduled to start promptly at one in the afternoon. 
- ジョーク(面白い話や備考)John always has a good one to tell at parties, leaving everyone in stitches. 
- 特徴のある人(その人の特徴で知られている人)She's quite the one for baking; her cookies are always a hit at the bake sale. 
- 完璧な人や物I know it. She is the one for me. 
形容詞 “one”
- ある(特定の時間を指す時)One morning, she woke up to find the garden covered in a blanket of snow. 
- 何か(不特定の単一のアイテムや実体)In a city, one shop is just like the other. 
- 唯一の(他にない)In the vast expanse of the desert, he was the one source of knowledge for miles around. 
- 全体的なまたは分割されていないThe team worked as one to achieve their goal. 
- 一致して(調和している)After the meeting, the committee was one in their decision to proceed with the project. 
- 同一の(性質が同じ)Though they may appear diverse, all these theories are one in their basic principles. 
限定詞 “one”
- 強調するために使われるThat was one incredible performance you gave on stage!