guitar – n. a musical instrument that is held against the front of your body and that has usually six strings which are played with your fingers or with a pick
auction – n. a public sale at which things are sold to the people who offer to pay the most
income – n. money that is earned from work, investments, business,
rent – n. money that you pay in return for being able to use property and especially to live in an apartment,
opportunity – n. an amount of time or a situation in which something can be done
utility – n. a service (such as a supply of electricity or water) that is provided to the public