Interest vs Shares

When to use each in English, with meaning, register, and examples.

Interest

Top 1,000 (very common)A1noun

Shares

Top 2,000 (common)
Most common: Interest
 InterestShares
Pronunciation🇬🇧 /["/ˈɪntrəst//ˈɪntrest/"]/🇺🇸 /["/ˈɪntrəst//ˈɪntrest/"]/🇬🇧 //ʃɛəz//🇺🇸 //ʃɛrz//
Meaninga feeling of wanting to know or learn about somethingParts of a company's ownership that people can buy.
ExampleI have a great interest in painting and art.Many investors buy shares in technology companies.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelA1-
Part of speechnoun
Collocationsavid, close, considerable, have, evince, express, grow, flag, wane, for interest, out of interest, with interest, great, particular, special, be of, hold no, add, lie in, of interest, diverse, varied, wide, have, share, pursue, annual, monthly, etc., earn, receive, pay, accrue, bear, rate, payment, charge, interest on, a rate of interest, best interest, best interests, own, defend, guard, look after, lie in something, be at stake, group, against somebody’s/​something’s interest, contrary to somebody’s/​something’s interest, in somebody’s/​something’s interest, a conflict of interest, a conflict of interests, have somebody’s interests at heart, powerful, controlling, majority, have, sell, interest in, best interest, best interests, own, defend, guard, look after, lie in something, be at stake, group, against somebody’s/​something’s interest, contrary to somebody’s/​something’s interest, in somebody’s/​something’s interest, a conflict of interest, a conflict of interests, have somebody’s interests at heartbuy shares, sell shares, own shares, trade shares, issue shares
Antonymsdisinterest, indifference-
Common mistakesConfused with 'interesting' or 'interested', Using 'interest' as a verb incorrectly, Mixing up 'interest' with 'curiosity'Confused with 'stocks'; both refer to ownership but differ slightly in context., Using 'share' instead of 'shares' when referring to multiple parts of ownership., Confusing 'shares' with 'dividends'; shares are ownership, dividends are profits distributed.
Usage notesUsed in both spoken and written English, 'interest' is appropriate in casual conversations and formal contexts. Avoid using it in overly technical discussions where more specific terms might be preferred.Use 'shares' in business contexts. It's suitable for formal and informal conversations about finance. Avoid in casual or non-financial discussions.

See it in real clips

Interest
Shares

Frequently asked questions: Interest vs Shares

What's the difference between Interest and Shares?

Interest: a feeling of wanting to know or learn about something Shares: Parts of a company's ownership that people can buy.

Which is more common: Interest and Shares?

Interest is the most common in everyday English.

Can you show an example of each?

Interest: I have a great interest in painting and art. Shares: Many investors buy shares in technology companies.

Can I use Interest and Shares interchangeably?

Not always. Interest and Shares are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

Related comparisons