BORROW
SWAP
WHOLE
PROMISE
EXIST
PLUMBER
HURT
LEND
RESEARCH
ETERNAL
continuing for ever and having no end
to be real or alive
to give someone money or something that belongs to you for a short time
to use something that belongs to someone else and that you must give back to them later
a statement that you will definitely do something or that something will definitely happen
all of something
someone whose job is to repair water pipes, baths, toilets
to give something to someone and get something in return, to exchange
to cause or feel pain in part of your body
serious study of a subject, in order to discover new facts or test new ideas