大きい describes overall size; 高い can describe height or a high price.

The idea

Use 大きい for a large box or dog, 高い for a high mountain or an expensive watch. For a tall person, 背が高い is natural. Both are い-adjectives; 大きくて高い connects “large and tall”.

Patterns to compare
FormExample
大おおきい大おおきい箱はこ
高たかい高たかい山やま
高たかい高たかい時計とけい

Examples

  • この箱はこは大おおきいですよ。This box is big.
  • あの山やまは高たかいですね。That mountain is high, isn’t it?
  • この時計とけいは高たかいですよ。This watch is expensive.
  • 大おおきい犬いぬが公園こうえんにいます。There is a big dog in the park.
  • 兄あには背せが高たかいです。My older brother is tall.
  • あの建物たてものは大おおきくて高たかいです。That building is large and tall.

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Watch out

The same building can be both 大きい and 高い: the words describe different dimensions. 高い with a price is “expensive”, not necessarily physically tall.

Try it yourself

  1. Choose the correct form: This box is big. この箱はこは__です。(大おおきい/高たかい)

    Show answer or example answer

    大きい

    The intended meaning is overall size, so 大きい fits.

  2. Choose the correct form: That mountain is high, isn’t it? あの山やまは__ですね。(大おおきい/高たかい)

    Show answer or example answer

    高い

    The question asks about the mountain’s height, so 高い fits.

  3. Choose the correct form: This watch is expensive. この時計とけいは__ですよ。(大おおきい/高たかい)

    Show answer or example answer

    高い

    The intended meaning is a high price, so 高い means “expensive”.

Use it today

Describe a large object, a tall person and an expensive item, then describe a building using both adjectives.