knee-high
B1informal, everyday
Definition
Meaning
Reaching up to the knees; of a height that extends to the knees.
Used to describe objects (especially boots, socks, or grass) that are approximately as tall as the human knee from the ground. Can also describe a very young child, implying they are small enough that their height is measured against an adult's knee.
Linguistics
Semantic Notes
Primarily used as a compound adjective before a noun (e.g., knee-high boots). Can also function as a noun, often pluralized (e.g., a pair of knee-highs). The 'knee-high to a grasshopper' idiom is fixed and highly idiomatic.
Dialectal Variation
British vs American Usage
Differences
No significant differences in core meaning. The idiom 'knee-high to a grasshopper' is common in both, though slightly more folksy in American English.
Connotations
Neutral for describing clothing/objects. The idiom connotes endearment, nostalgia, or emphasizing a long time span.
Frequency
Moderately common in both varieties, with similar frequency.
Vocabulary
Collocations
Grammar
Valency Patterns
[be] knee-high[be] knee-high to [noun][wear] knee-high [noun]Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “knee-high to a grasshopper”
Usage
Context Usage
Business
Rare, except perhaps in fashion retail.
Academic
Very rare.
Everyday
Common for describing clothing and in the idiomatic expression.
Technical
Not used.
Examples
By Part of Speech
adjective
British English
- She wore practical knee-high wellies for the muddy festival.
- The knee-high nettles made walking through the field unpleasant.
American English
- She bought a pair of black knee-high boots for the winter.
- The knee-high snow delayed the school buses.
Examples
By CEFR Level
- I have new knee-high socks.
- The grass is knee-high.
- She always wears knee-high boots in autumn.
- We've known each other since I was knee-high to a grasshopper.
- The meadow was full of knee-high wildflowers swaying in the breeze.
- He recounted stories from when his daughter was just knee-high.
- Fashion trends have cycled back to the knee-high boots popular in the early 2000s.
- The idiom 'knee-high to a grasshopper' humorously underscores the passage of time since one's youth.
Learning
Memory Aids
Mnemonic
Imagine a line drawn horizontally across your KNEE. Anything that reaches up to that line is KNEE-HIGH.
Conceptual Metaphor
HEIGHT IS MEASURED AGAINST THE BODY (using a body part as a unit of measurement).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct calque 'колено-высокий'. Use 'до колен' (for height) or 'высокие (ботинки)' (for boots). The idiom does not translate literally.
Common Mistakes
- Using 'knee-high' as a standalone noun without 'boots' or 'socks' can be ambiguous (e.g., 'She bought knee-highs' is correct; 'She bought a knee-high' is odd).
Practice
Quiz
What does the idiom 'knee-high to a grasshopper' mean?
FAQ
Frequently Asked Questions
Yes, but almost exclusively in the fixed idiom 'knee-high to a grasshopper' to mean 'very young and small'. It is not standard to describe an adult as 'knee-high'.
Yes, when used as a compound adjective before a noun (knee-high boots). It may be written as two words or hyphenated when used predicatively (The grass is knee high/knee-high).
'Knee-high' describes something that reaches up to the knee. 'Over-the-knee' (or thigh-high) describes something that extends above the knee, often to the mid-thigh or higher.
Primarily, it refers to knee-high socks or stockings. In very casual contexts, it might be understood as knee-high boots, but 'boots' is usually specified for clarity.