a space that is completely empty of all substances, including all air or other gas

(a)  

a situation, an event, etc. that makes it difficult for you to do or achieve sth

(a)  

to do what you are told or expected to do

(a)  

a television program that is shown again

(a)  

a special event, ceremony or celebration

(a)  

feeling more sensitive or emotional again

(a)  

a little (adv.)

(a)  

a mistake, especially one that causes problems or affects the result of sth

(a)  

(adj.) unable to understand sth or the reason for sth

(a)  

to expect sth.

(a)  

to control the direction in which a boat, car, etc. moves

(a)  

to cut grass, etc. using a machine or tool with a special blade or blades

(a)  

equipment that can detect certain sounds and movements

(a)  

the quality of being able to control your feelings or actions

(a)  

to use facts, evidence, etc. to show that sth is true

(a)  

belonging to the present time

(a)  

an advantage that sth gives you; a helpful and useful effect that sth has

(a)  

being careful about what you say or do, especially to avoid danger or mistakes; not taking any risks

(a)  

not done, seen, happening, etc. very often

(a)