Meaning of “keen” in the English Dictionary

"keen" in English

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keenadjective

uk /kiːn/ us /kiːn/

keen adjective (EAGER)

B1 very interested, eager, or wanting (to do) something very much:

They were very keen to start work as soon as possible.
Joan wanted to go to a movie but I wasn't keen (= I didn't want to go).
She's a keen tennis player
She's keen on (playing) tennis.
UK My son's mad keen on cycling.
He's rather keen on a girl in his school (= he is very attracted to her).

More examples

keenly
adverb uk /ˈkiːn.li/ us /ˈkiːn.li/

They are keenly (= extremely) aware that this will be their last chance to succeed.

keenverb [ I ]

uk /kiːn/ us /kiːn/ literary
keenness
noun [ U ] uk /ˈkiːn.nəs/ us /ˈkiːn.nəs/

the quality of being keen

(Definition of “keen” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"keen" in American English

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keenadjective [ -er/-est only ]

us /kin/

keen adjective [ -er/-est only ] (STRONGLY FELT)

(esp. of emotions and beliefs) strongly felt:

a keen interest in painting

keen adjective [ -er/-est only ] (DEVELOPED)

(of an awareness or ability) very developed, or (of the mind) very quick to understand:

a keen eye for detail
a keen sense of smell

keen adjective [ -er/-est only ] (EAGER)

eager, interested, and enthusiastic:

Theresa isn’t too keen on pets.

(Definition of “keen” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"keen" in Business English

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keenadjective

uk /kiːn/ us

if competition between people or businesses is keen, they are using a lot of effort to be more successful than the others:

Some firms are diversifying their businesses in response to keen competition.

UK if prices are keen, they are lower and offer more value than others:

Superstores may offer keen prices that small-town shops cannot match.

UK very interested in something or eager to do something:

A keen member of two local investment clubs, he runs portfolios of shares for both himself and his wife.
a keen interest in sth Among the foundation's donors are corporations with a keen interest in issues before the legislature.
keen on sth Like every banker these days, he is keen on managing other people's wealth.
keen to do sth The company is keen to expand beyond the UK.

(Definition of “keen” from the Cambridge Business English Dictionary © Cambridge University Press)

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keen

The critical dialogue should not be there to ease our conscience, while we in the meantime keep a keen eye on our own economic interests.
We are all very keen on transparency, but is more involvement by interest groups selected by you and with which you alone negotiate more transparency?
They have shown a keen sense of appreciation of the issues at stake in this directive, reducing the number of amendments to 15.
We know that the market is particularly keen on small and medium-sized businesses that are innovative and produce highly marketable products.
Indeed, whilst the young are penniless, the elderly have accumulated money and, since they are keen to turn it to good advantage, harbour great hopes for this directive.
The citizens are all too keen to forget that they have to declare the income derived from moveables from another country to the tax administration of their own country.
In particular, of course, we are keen to hear why inter-parliamentary relations do not merit a single mention in this new agreement.
I am, however, keen to specify, quite clearly, that the improvements which we expect to see in the instrument will in no way mean a more lenient policy.
In the field of competitiveness, we are keen to support entrepreneurship, because it is vital not just to economic development, but to social cohesion, employment and regional development.
We, like you, are therefore very keen to ensure that it works as well as possible as part of an autonomous scientific community.

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