一番ichiban“the most or number one”

一番（いちばん） literally means “number one.” Put it in front of an adjective and it gives you the Japanese superlative: the most, the best, the ___-est. Japanese adjectives have no special “-est” ending, so 一番 does that job. 高い becomes 一番高い (the tallest, the most expensive), and 好き becomes 一番好き (your favorite). It is a JLPT N5 word you will use constantly for favorites, rankings, and directions.

Japanese adjectives don't change for "-er" or "-est." Put 一番 in front of the adjective and you have the superlative.

What does 一番（いちばん） mean?

一番 marks the item at the top of a group for some quality. Natural English renderings are:

• the most / the ___-est — 一番高い山 (the highest mountain)
• best / favorite — 一番好きな食べ物 (my favorite food)
• the very ___ (with position words) — 一番前 (the very front), 一番上 (the very top)

It also keeps its literal meaning “number one” or “first” in counting contexts: 一番線 is Platform 1 at a station, and 一番になりました means “I came first.” Context makes it clear which you mean. In most N5 sentences, 一番 sits right before an adjective.

How to form 一番（いちばん）

The core rule: 一番 goes directly in front of the adjective, with no particle between them. The adjective itself does not change.

The pieces:

• Scope with で or の中で: 日本で一番, 家族で一番, 果物の中で一番. This tells the listener which group you are comparing.
• The winner with が: When the item answers “which one?”, mark it with が: りんごが一番好きです.
• Any adjective type: i-adjectives (一番安い), na-adjectives (一番静かな町), and 好き / 嫌い / 上手 / 下手 all work.
• Modifying a noun: 一番 + adjective + noun: 一番近い駅 (the nearest station), 一番好きな歌手 (my favorite singer).
• With verbs: 一番 can also go before an adverb and a verb: 一番よく食べます (what I eat most often), 一番早く来ました (came earliest).

To ask the question, use a question word with が: 何が一番好きですか, どれが一番安いですか, 誰が一番上手ですか, いつが一番いいですか.

When is 一番（いちばん） used?

• Talking about favorites: 何の食べ物が一番好きですか is a standard small-talk question in Japan.
• Ranking inside a group: your family, your class, a country, a set of things on a table.
• Asking for directions or recommendations: 一番近いコンビニはどこですか, どれが一番人気がありますか.
• Positions: 一番前, 一番後ろ, 一番上, 一番下 point to the extreme end of a row or stack.

一番 is everyday and neutral. You hear it in casual chat, in polite shop Japanese, and on signs. Formal writing sometimes uses 最も (もっとも) instead, but you only need to recognize that one at N5.

一番（いちばん） example sentences

Look at the third sentence. The answer to いつが一番好きですか keeps the が: 秋が一番好きです (I like autumn best). A question word with が gets an answer with が.

Nuance of 一番（いちばん）

一番 always implies a group of three or more, or at least an open-ended group. When only two things are being compared, Japanese switches to a different pattern (より / ほうが, covered below). So if you say この二つの中で一番, it sounds odd to a Japanese ear.

Because 一番 names one winner, it can sound strong. When you compliment someone’s cooking with これが一番おいしい, you are saying it beats everything else, and that is usually a nice thing to hear. In the other direction, 一番下手 (the worst at it) is blunt. People use it about themselves and avoid it about others.

一番（いちばん） vs より〜ほうが

Learners often use 一番 when there are only two options. Japanese has a separate pattern for two-way comparisons, so check how many things are in play before choosing.

Quick check: if the question uses どちら, answer with ほうが. If it uses どれ or 何, answer with 一番. See the より〜ほうが guide for the two-item pattern in detail.

Common mistakes with 一番（いちばん）

Is 一番（いちばん） on the JLPT?

In listening questions, the speaker often mentions several items before naming the one that is 一番. Wait for 一番 before you decide on an answer.

Practice questions for 一番（いちばん）

Learning path for 一番（いちばん）

Related grammar to review next

• の中で〜が一番 — the full sentence frame that 一番 usually lives in.
• より〜ほうが — the two-item comparison you use instead of 一番 when there are only two choices.
• は〜より〜です — the simplest comparison statement and the first step before superlatives.
• で — the particle that sets the range in クラスで一番 and 日本で一番.
• が — why the winner in 何が一番 questions and answers is marked with が.

Learn 一番（いちばん） with Hane

Hane has you build 一番 sentences about your own favorites and practice them next to より〜ほうが, so you learn which one fits two options and which one fits more. Try it in Hane.