can, to be able to / may / to be possible; may, could be

(countable or uncountable) power

(economics) purchasing power (amount of goods and services that can be bought with a unit of currency) / (economics) spending power (amount of goods and services that can be bought by consumers)

(impersonal, reflexive) to be possible; may, could be

in power

(economics) market power

to take power, to seize power

(law) attorney-in-fact, proxy, authorised representative, authorised signatory

abuse of power

to be exhausted / to be overwhelmed / to be unable to take any more; to have had it with; to be fed up with; to be sick and tired of