1 [U] ~ (in sth) the act of investing money in sth:
to encourage foreign / private investment * investment income * This country needs investment in education.
2 [C] the money that you invest, or the thing that you invest in:
a minimum investment of $10000 * a high return on my investments * Our investments are not doing well. * We bought the house as an investment (= to make money).
3 [C] a thing that is worth buying because it will be useful or helpful:
A microwave is a good investment.
4 [U,C] the act of giving time or effort to a particular task in order to make it successful:
The project has demanded considerable investment of time and effort.
