A thick forest in tropical parts of the world that have a lot of rain.

(a)  

An area in the desert where there is water and where plants grow.

(a)  

A large area of land that has very little water and very few plants growing on it. It is covered by sand.

(a)  

A high area of rock with a very steep side, often at the edge of the sea or ocean.

(a)  

The land next to or near to the sea or ocean.

(a)  

A passage built underground, for example to allow a road or railway to go through a hill, under a river, etc.

(a)  

A small, narrow river.

(a)  

An area of low land between hills or mountains, often with a river flowing through it; the land that a river flows through.

(a)  

An area of trees, smaller than a forest.

(a)  

A mountain with a large opening at the top through which gases and lava (= hot liquid rock) are forced out into the air, or have been in the past.

(a)  

Everything you can see when you look across a large area of land, especially in the country.

(a)  

to a very high degree (adv)

(a)  

dry, with little rain

(a)