Is 'keep fit' a verb?

Primarily, no. It is mainly a noun (e.g., 'I do keep-fit') or a modifier (e.g., 'a keep-fit class'). The verbal idea is expressed by 'keep fit' as a phrase (e.g., 'I keep fit by swimming'), but the standalone term is nominal.

Can I use 'keep fit' in American English?

You can, but it will sound noticeably British. An American is more likely to say 'exercise,' 'work out,' or 'go to a fitness class.'

What's the difference between 'keep fit' and 'keep in shape'?

Both mean to maintain physical health through exercise. 'Keep fit' is a noun/modifier (BrE). 'Keep in shape' is a verbal phrase, common in both BrE and AmE (e.g., 'I run to keep in shape').

Is 'keep-fit' hyphenated?

It is commonly hyphenated when used as a modifier before a noun (e.g., keep-fit routine). As a standalone noun, it can be written as 'keep fit' (open) or 'keep-fit' (hyphenated); dictionaries vary. Hyphenation is very common.

keep fit

UK/ˌkiːp ˈfɪt/US/ˌkip ˈfɪt/

Informal, but acceptable in semi-formal contexts (e.g., brochures, casual conversation).

My Flashcards

Definition

Meaning

The activity of doing regular physical exercises to stay healthy and strong.

Can refer to a specific class or program of physical exercise; more broadly, the practice of maintaining physical health through exercise.

Linguistics

Semantic Notes

Primarily used as a noun (uncountable) or modifier. As a noun, it conceptualizes the activity itself. It often implies a regular, light-to-moderate exercise routine for general health rather than intensive athletic training.

Dialectal Variation

British vs American Usage

Differences

"Keep fit" is significantly more common in British English as a standard term for general exercise. In American English, it sounds slightly British or old-fashioned; terms like "exercise," "work out," or "fitness" are preferred.

Connotations

In BrE: Neutral, common, associated with community classes and general wellbeing. In AmE: May sound quaint, formal, or specifically refer to a class type with a British flavor.

Frequency

High frequency in BrE, moderate-to-low in AmE. In AmE, it's often seen in branded class names (e.g., 'Keep Fit with Jane') or in contexts influenced by BrE.

Vocabulary

Collocations

strong

keep-fit classkeep-fit exercisesdo keep-fitfor keep-fit

medium

keep-fit routinekeep-fit sessionkeep-fit programme/programkeep-fit enthusiast

weak

keep-fit videokeep-fit goallocal keep-fitsimple keep-fit

Grammar

Valency Patterns

[do] + keep-fit[attend/go to] + a keep-fit class[for] + keep-fit

Vocabulary

Synonyms

Strong

fitness trainingconditioning

Neutral

exerciseworkoutphysical activity

Weak

calisthenicsaerobics (context-specific)

Vocabulary

Antonyms

sedentary lifestyleinactivity

Phrases

Idioms & Phrases

“Keep your hand in (related metaphor for maintaining skill)”

Usage

Context Usage

Business

Rare, except in wellness industry marketing (e.g., 'corporate keep-fit initiatives').

Academic

Very rare; 'physical exercise' or 'PA' (physical activity) are used.

Everyday

Common in BrE for discussing exercise habits, classes, and general health.

Technical

Not used in medical/sports science; terms like 'cardiovascular exercise,' 'resistance training' are used.

Examples

By Part of Speech

adjective

British English

She bought some new keep-fit gear.
The council runs keep-fit sessions.

American English

She joined a keep-fit class at the community center. (less common)

Examples

By CEFR Level

I do keep-fit at the park.
My mum goes to a keep-fit class.

Regular keep-fit helps me feel more energetic.
The local leisure centre offers cheap keep-fit sessions.

Despite her busy schedule, she prioritises keep-fit for mental wellbeing.
The keep-fit programme was designed for all age groups.

The perceived accessibility of keep-fit activities, as opposed to competitive sports, encourages broader participation.
Her research examined the socio-cultural motivations behind the mid-20th century keep-fit movement.

Learning

Memory Aids

Mnemonic

KEEP your body FIT → KEEP FIT. Think of a kettlebell you 'keep' holding to stay 'fit'.

Conceptual Metaphor

HEALTH IS A POSSESSED OBJECT (you 'keep' fit as you keep a valuable item).

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

Avoid direct translation as "держать форму" in all contexts; it's not a direct phrasal verb 'keep' + 'fit'. It's a fixed noun phrase.
Do not confuse with "keep in shape," which is a verbal phrase and more common in AmE.

Common Mistakes

Using it as a verb (e.g., 'I keep fit every day' is BrE but unusual; 'I exercise every day' is better). Overusing in American English contexts.
Treating 'fit' as an adjective here (it's part of a compound noun).

Practice

Quiz

Fill in the gap

In British English, many people join a class to stay healthy.

Multiple Choice

In which variety of English is the term 'keep-fit' most commonly and naturally used as a standard term for general exercise?

FAQ

Frequently Asked Questions

: Primarily, no. It is mainly a noun (e.g., 'I do keep-fit') or a modifier (e.g., 'a keep-fit class'). The verbal idea is expressed by 'keep fit' as a phrase (e.g., 'I keep fit by swimming'), but the standalone term is nominal.
: You can, but it will sound noticeably British. An American is more likely to say 'exercise,' 'work out,' or 'go to a fitness class.'
: Both mean to maintain physical health through exercise. 'Keep fit' is a noun/modifier (BrE). 'Keep in shape' is a verbal phrase, common in both BrE and AmE (e.g., 'I run to keep in shape').
: It is commonly hyphenated when used as a modifier before a noun (e.g., keep-fit routine). As a standalone noun, it can be written as 'keep fit' (open) or 'keep-fit' (hyphenated); dictionaries vary. Hyphenation is very common.