A block is a piece of wood, stone or another kind of masonry that is used to build things out of.
Blocks can be very big and used to make buildings from, or very small and used as a children's toy.
A block is also a word used to describe a lot of small places that you live, like flats or apartments, that are joined together into one building.
Block is also used to describe something that stops something else from happening, like when you have writer's block you can't have any good ideas.
A blog, shortened from "web log", is a website written by an individual or a small group about a particular subject. Blogs can be professional or personal, and often contain images and links in addition to writing.
Blonde, also spelt blond, is a hair colour. Blonde is a pale, yellowish colour.
Blood is a red liquid that your heart pumps through your entire body. Blood carries all the nutrients that your body needs to live and grow. Normally you can never see your blood as it is inside you, but when you have an accident, cut yourself and bleed you can see your blood.
However, not all creatures have red blood. Some marine creatures such as horseshoe crabs and many insects have green blood, which contains the copper-based cyanoglobin rather than the red iron-based haemoglobin.
Your eyes are bloodshot if you can clearly see the blood vessels in them. You get bloodshot eyes when you are very tired, dehydrated, have conjunctivitis, or if your eyes have been damaged by something.
A bloom might be a single flower, all the flowers on a plant, or the fact that the plant is flowering. The trees in the picture are in full bloom.
