leaf
B1Neutral to Formal
Definition
Meaning
The flat, typically green, organ of a plant, attached to a stem, where photosynthesis occurs.
A single sheet of paper in a book; a thin, flat sheet or layer of material (e.g., gold leaf); a hinged or detachable part of a table; to produce leaves; to browse through pages casually.
Linguistics
Semantic Notes
Primarily a noun, but can be used as a verb meaning 'to produce leaves' (intransitive) or 'to turn the pages of a book' (transitive, often with 'through'). It often implies a component part of a larger whole (book, plant, table).
Dialectal Variation
British vs American Usage
Differences
No significant differences in the core meaning. The verb 'to leaf (through)' is equally common. The plural 'leaves' is standard.
Connotations
Identical. Often associated with nature, growth, change (as in autumn/turning over a new leaf), and fragility.
Frequency
Comparably high frequency in both varieties.
Vocabulary
Collocations
Grammar
Valency Patterns
N (countable)V (intransitive): The trees leaf in spring.V + through + N (transitive): She leafed through the magazine.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Turn over a new leaf”
- “Take a leaf out of someone's book”
- “Shake like a leaf”
Usage
Context Usage
Business
Rare, except metaphorically in 'turn over a new leaf' (start afresh).
Academic
Common in botany, biology, and environmental science. Also 'loose-leaf binder' in education.
Everyday
Extremely common for plant parts and book pages.
Technical
Botany: the main site of photosynthesis. Metallurgy/Art: gold/silver leaf. Carpentry: a drop-leaf or extending table leaf.
Examples
By Part of Speech
verb
British English
- The hedge will leaf out again in April.
- He leafed idly through the catalogue.
American English
- The trees are starting to leaf early this year.
- She leafed through the report before the meeting.
adjective
British English
- The loose-leaf folder is on the desk.
- They served tea from a bone china pot with a leaf pattern.
American English
- Please update the loose-leaf manual.
- We bought a leaf-green paint for the accent wall.
Examples
By CEFR Level
- I found a red leaf on the ground.
- The book has 200 leaves.
- In autumn, each leaf changes colour.
- He decided to turn over a new leaf and exercise more.
- The artisan carefully applied gold leaf to the frame.
- The table has an extra leaf to extend it for dinner parties.
- The dissertation was presented in a hefty loose-leaf binder.
- After years of stagnation, the company is finally leafing out into new markets.
Learning
Memory Aids
Mnemonic
Think of the word 'LEAf' as part of 'pLEAse'. A plant makes a pLEA for sunlight with its LEAves.
Conceptual Metaphor
LEAF AS A PAGE (life's chapter, turning over a new leaf); LEAF AS SOMETHING THIN/LAYERED (gold leaf); LEAF AS SOMETHING FRAGILE/TEMPORARY (fallen leaf, shaking like a leaf).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid confusing 'лист' (leaf/page) with 'листок' (small leaf/note). The verb 'to leaf through' is 'листать'. The plural 'leaves' is irregular.
Common Mistakes
- Incorrect plural: 'leafs' (correct: 'leaves'). Confusing 'leaf' with 'leave' (verb). Using 'leaf' as a mass noun (e.g., 'a pile of leaf' is incorrect; use 'a pile of leaves' or 'leaf litter').
Practice
Quiz
What is the correct plural form of 'leaf'?
FAQ
Frequently Asked Questions
Yes, when referring to individual plant organs or sheets of paper (e.g., three leaves). It can be uncountable in compounds like 'gold leaf' or 'leaf mould'.
Yes. Intransitively: 'The trees leaf in spring.' Transitively with 'through': 'to leaf through a book' means to browse it casually.
Technically, a 'leaf' is a single sheet of paper, comprising two 'pages' (front and back). In everyday use, they are often used interchangeably, though 'page' is more common.
Only as the third-person singular present tense of the verb ('The tree leafs in May') or as a proper noun (e.g., the Toronto Maple Leafs hockey team). The plural noun is always 'leaves'.