A gem is a special stone that is shiny and pretty. People use gems to make jewelry like rings and necklaces.
She wore a necklace with a red gem.
Diamonds are one type of gem.
People say 'gem' to talk about someone or something very special or nice. It means the thing or person is like a treasure.
She is a real gem of a friend.
The kids found a gem in the old toy.
In mining, a gem is a thin line of valuable stones or metals inside rocks. Miners look for these to get metals or gems.
Miners found a rich gem in the mountain.
This gem contains gold and silver.
GEM is a website where government agencies buy things. It helps buyers and sellers work online safely.
The company bids on GEM for public contracts.
GEM helps governments buy goods online.
In science, a GEM is a special container for growing plants or animals under controlled conditions. It is used in space or labs.
Scientists use a GEM to grow plants in space.
The GEM keeps a safe environment for algae.
People often call someone a gem when they are very good or special at something, like sports or work.
He is a gem on the football team.
That player is a real gem to watch.
As a verb, gem means to move or jerk quickly and suddenly. This use is old and not common today.
The horse gemmed and shook the rider off.
She gemmed her hand away fast.
