noun - a strong, narrow flow of water moving away from the shore, which can pull swimmers out to sea, it is dangerous and often hard to see

noun - one of the two lower chambers responsible for pumping blood out of the heart to the rest of the body or to the lungs for oxygenation

noun - a strip or piece of material (usually rubber or plastic) that is put on something to prevent water, air or dirt to get in or out

noun - a periodical that comes out every week, every other week, or every month, etc., it is usually printed in colour and has many photos and pictures

noun, American English - a kind of wooden or metal structure that sticks out from the land over the sea, it is used by boats for loading and unloading goods

noun - a kind of wooden or metal structure that sticks out from the land over the sea, it is used by boats for loading and unloading goods

noun - a kind of wooden or metal structure that sticks out from the land over the sea, it is used by boats for loading and unloading goods

noun - a large Arctic animal that lives in or near the sea, it looks like a seal, but has two long teeth that come out of its mouth