keep sb/sth in mind
idiom.idiom. to remember a piece of information so that you can use it or consider it later.
idiom. to retain specific information in one's consciousness for future consideration or application; often used when providing advice or warnings.
Please keep the deadline in mind while you work.
When you are looking for a new apartment, keep in mind that prices usually rise in the summer.
While the initial results are promising, we must keep in mind that the sample size was relatively small and may not represent the wider population.
the object (sb/sth) can be placed between 'keep' and 'in mind' or after the whole phrase if it is a long clause.
contrast with 'bear in mind', which is slightly more formal but carries the same meaning; 'keep in mind' is more common in spoken instructions.
Keep in the mind that it is cold.Keep in mind that it is cold.the phrase is a fixed idiom and does not use the definite article 'the' before 'mind'.