What does 高 mean in Japanese?
高 is one of the most versatile adjectives in Japanese, covering physical height, price, level, and quality all under a single character. Whether you are describing a tall building, an expensive meal, a high speed, or a school grade level, 高 carries the core idea of something elevated above a baseline.
What makes 高 especially important for learners is that 高い can mean either tall/high or expensive depending on context — a distinction that trips up beginners but quickly becomes second nature. Mastering 高 unlocks a large cluster of everyday N4 words including 高校, 最高, 高速, and 高級.
Reading
On’yomi: コウ (kou)
Kun’yomi: たか-い (taka-i), たか (taka), たか-まる (taka-maru), たか-める (taka-meru)
Basic Information
| Kanji | 高 |
|---|
How to Understand This Kanji
高 spans three distinct usage zones. As an adjective (高い), it describes physical tallness or high price — context alone distinguishes which is meant. As a prefix in on’yomi compounds, it signals something elevated in quality, speed, or grade: 高速 (high speed), 高級 (high class), 高校 (high school). In superlative expressions, 最高 means the utmost best or maximum. The character rarely appears standalone as a noun in modern Japanese but is highly productive in compound formation.
Common Words
- 高い（たかい / takai） — tall, high; expensive
- 高校（こうこう / koukou） — high school
- 最高（さいこう / saikou） — the highest; best, greatest
- 高速（こうそく / kousoku） — high speed
- 高級（こうきゅう / koukyuu） — high class, luxury, premium
- 高まる（たかまる / takamaru） — to rise, to grow, to heighten
Example Sentences
-
この山はとても高いです。
このやまはとてもたかいです。 / Kono yama wa totemo takai desu.
This mountain is very tall.
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あのレストランは料理がおいしいけど、少し高いです。
あのレストランはりょうりがおいしいけど、すこしたかいです。 / Ano resutoran wa ryouri ga oishii kedo, sukoshi takai desu.
That restaurant has delicious food, but it is a little expensive.
-
姉は高校で数学を教えています。
あねはこうこうですうがくをおしえています。 / Ane wa koukou de suugaku o oshiete imasu.
My older sister teaches math at a high school.
When Learners Usually See This Kanji
The most important nuance for learners: 高い means both tall/high and expensive. 高い山 (takai yama) means a tall mountain; 高い値段 (takai nedan) means a high price. Context — specifically, what noun follows — tells you which meaning applies. There is no grammatical marker for the difference; exposure builds the intuition quickly.
The on’yomi コウ dominates in compound nouns: 高校 (koukou, high school), 最高 (saikou, best/maximum), 高速 (kousoku, high speed), 高級 (koukyuu, high class). The kun’yomi たかい is used when 高 functions as a free-standing adjective modifying a noun directly.
低 (low) is the natural antonym of 高 and will pair well once it is added. For price, the antonym in everyday speech is 安い (yasui, cheap/inexpensive).
Summary
高 means high, tall, or expensive and is one of the most productive N4 adjective-stems, appearing in essential words about height, price, speed, quality, and school level.