decline
B2Neutral to Formal (for the 'refuse' sense, more formal; for the 'decrease' sense, neutral across registers).
Definition
Meaning
To refuse politely; to become smaller, fewer, or worse; a gradual and continuous loss of strength, numbers, quality, or value.
In grammar, to state the forms of a noun, pronoun, or adjective corresponding to case, number, and gender. In formal or literary contexts, can refer to moving downwards, especially of the sun.
Linguistics
Semantic Notes
The verb has two distinct core meanings: 1) 'to refuse' (transitive, takes an object), 2) 'to decrease/deteriorate' (intransitive). The noun almost exclusively relates to the 'decrease' meaning.
Dialectal Variation
British vs American Usage
Differences
Minimal. The 'refuse' sense is slightly more formal in both varieties but equally understood. Spelling: inflectional forms are 'declined', 'declining' in both.
Connotations
Similar. 'Decline' as a noun for a downward trend is common in economic/political discourse in both varieties.
Frequency
Comparably frequent. The noun 'decline' is highly frequent in news media in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
decline + noun (refuse)decline + to-infinitivedecline + by/from X to Y (decrease)decline + adverb (sharply, rapidly)be in decline (noun)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Decline and fall”
- “On the decline”
- “Politely decline”
Usage
Context Usage
Business
Refers to a reduction in sales, profits, or market share. 'The company reported a sharp decline in quarterly revenue.'
Academic
Used to describe trends in data, historical periods, or the weakening of theories. 'The study tracks the decline of the empire over two centuries.'
Everyday
Used for health, quality, or simple refusals. 'Granddad's health has declined recently.' / 'I had to decline the offer as I was busy.'
Technical
In medicine: 'cognitive decline'; in economics: 'marginal rate of decline'; in grammar: 'to decline a Latin noun'.
Examples
By Part of Speech
noun
British English
- There's been a noticeable decline in bird populations in this area.
- The old mining town fell into decline after the pits closed.
- His work shows a decline in quality.
American English
- The city is trying to reverse its economic decline.
- We are studying the decline of ancient civilizations.
- A sharp decline in temperatures is expected tonight.
verb
British English
- She declined to comment on the rumours.
- The high street has been in declining health for years.
- He declined the post of Treasurer due to other commitments.
American English
- The senator declined to answer the question.
- Manufacturing jobs have declined steadily since 2000.
- I'm sorry, but I have to decline your invitation.
adverb
British English
- No direct adverb form. Use 'decliningly' is extremely rare/obsolete. Use phrases: 'in a declining manner'.
American English
- No direct adverb form. Use 'decliningly' is extremely rare/obsolete. Use phrases: 'on a declining path'.
adjective
British English
- No standard adjectival form; 'declining' is the present participle used adjectivally: 'a declining industry'.
American English
- No standard adjectival form; 'declining' is the present participle used adjectivally: 'declining enrollment figures'.
Examples
By CEFR Level
- The number of students in the class declined.
- I must decline the cake, thank you.
- She politely declined the job offer because the salary was too low.
- There has been a slow decline in the quality of the air.
- Despite the generous terms, the athlete declined to renew his contract with the club.
- The report documents the precipitous decline of coral reefs due to warming seas.
- The historian's thesis posits that internal factionalism, rather than external invasion, precipitated the empire's terminal decline.
- The minister declined to be drawn on the specifics of the leaked policy document.
Learning
Memory Aids
Mnemonic
Think of a CLIFF going DOWN. DECLINE has 'CLINE' in it, like 'incline' but the opposite (DE- = down). To decline is to go down in numbers or to turn an offer 'down'.
Conceptual Metaphor
DOWN IS BAD/LESS; GOOD/SUCCESS IS UP. Decline maps negative change onto downward movement.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Не путать с 'наклоняться' (to bend down).
- Русский 'декларировать' (to declare) — ложный друг.
- 'Decline an offer' — это вежливый отказ, а не агрессивное отрицание (как 'deny' или 'reject' иногда могут восприниматься).
Common Mistakes
- Using 'decline' + -ing verb (incorrect: 'I declined going'). Correct: 'I declined to go.'
- Confusing 'decline' (intransitive decrease) with 'reduce' (transitive). 'Sales declined' (correct) vs. 'We declined sales' (incorrect for decrease).
Practice
Quiz
In which sentence is 'decline' used to mean 'refuse'?
FAQ
Frequently Asked Questions
It depends on the meaning. 'Decline' meaning 'to refuse' is polite and formal ('I decline to answer'). 'Decline' meaning 'to decrease' is neutral and used in all registers ('Sales declined').
'Decline' is the most polite for offers/invitations. 'Refuse' is more direct and can be used with nouns or infinitives ('refuse an order', 'refuse to go'). 'Reject' is stronger, often implying a definitive dismissal of an idea, proposal, or person as unsuitable.
Yes. Transitive: 'She declined the offer' (refuse). Intransitive: 'The market declined' (decrease). The noun form is only related to the intransitive 'decrease' meaning.
This is a grammatical term, chiefly for languages like Latin, German, or Russian. It means to list the different case forms (nominative, accusative, genitive, etc.) of a noun, pronoun, or adjective.