Seek = to try to find something. Find = Locating something previously missing. Pick up = Taking an item off the ground. Search = same as SEEK. Fetch = To RETRIEVE something, doesnt have to be LOST. You can fetch the TV remote in front of you.

look for=search for=seek= *chercher*: "look for" is a bit informal, and "seek" is a bit archaic. find=trouver pick up= get something off the ground, or get something that someone else has prepared for you, or drive somewhere to help someone go somewhere else. EX: "I ordered a pizza while I was at work, and picked it up on the way home"; EX: "I picked Sally up at school and drove home." fetch=get something that isn't where you are right now EX:I fetched my hat then went out for a walk.