Translation guide
In Japanese, expressing 'one drink' depends on context: ordering a single beverage, referring to a single alcoholic drink, or emphasizing 'just one.' The most common approach uses counters like 一杯 (いっぱい) for cups/glasses, or 一本 (いっぽん) for bottles. For 'just one,' 一つ (ひとつ) or 一個 (いっこ) may be used. In social drinking contexts, phrases like 一杯だけ (いっぱいだけ) or ちょっと一杯 (ちょっといっぱい) are natural.
To order or mention a single serving of a beverage, such as a glass of water, a cup of coffee, or a beer.
The standard counter for a cup, glass, or bowl of a drink. Use with the drink name: [drink]を一杯. For 'one,' the number is often omitted because 一杯 already implies one.
水を一杯ください。
One glass of water, please.
コーヒーを一杯飲みたい。
I want to have a cup of coffee.
Generic counter for 'one thing.' Can be used for drinks in casual contexts, especially when the container is not specified or when ordering from a menu with numbered items.
ビールを一つください。
One beer, please.
Counter for small, roundish objects. Can be used for canned or bottled drinks, but 一本 is more common for bottles.
缶ジュースを一個買った。
I bought one can of juice.
To refer to a single bottle or can of a beverage, such as a bottle of water or a can of soda.
The standard counter for long, cylindrical objects like bottles and cans. Use with the drink name: [drink]を一本.
お茶を一本買いました。
I bought one bottle of tea.
ビールを一本ください。
One bottle of beer, please.
To emphasize having only one drink, often in social situations where you might limit yourself or invite someone for a quick drink.
一杯 (one cup/glass) + だけ (only). Natural for saying 'just one drink.'
今日は一杯だけにしよう。
Let's just have one drink today.
一杯だけ飲みませんか？
Won't you have just one drink?
ちょっと (a little) + 一杯 (one drink). A common casual invitation meaning 'a quick drink.' Implies a short, informal drinking session.
仕事の後、ちょっと一杯どう？
How about a quick drink after work?
Emphatic way to say 'I'll only have one drink.' しか + negative verb means 'only.' Stronger than 一杯だけ.
今夜は一杯だけしか飲まないと決めた。
I decided to have only one drink tonight.
To refer to a single alcoholic drink without specifying the type or container, often in contexts like 'I had one drink.'
お酒 (alcohol) + 一杯 (one cup). A natural way to say 'one alcoholic drink.'
お酒を一杯だけ飲みました。
I had just one drink (of alcohol).
Slang for 'to have a quick drink.' 引っかける means to gulp down. Very casual, often used among friends.
帰りに一杯引っかけていかない？
Wanna grab a quick drink on the way home?
Do not translate 'one drink' as 一つの飲み物 (ひとつののみもの). While grammatically correct, it sounds unnatural and overly literal. Use counters like 一杯 or 一本 depending on the container.
一杯 (いっぱい) is for drinks served in cups, glasses, or bowls. 一本 (いっぽん) is for bottles and cans. 一個 (いっこ) can be used for cans or small containers but is less specific. When in doubt, 一杯 is the safest for a serving of a drink.
パーティーではお酒を一杯だけ飲みました。
I only had one drink at the party.
もう一杯もらえますか？
Can I get one more drink?