pp.844-845

1) to complain about sb/sth in a bad-tempered way: ~ (at/to sb) (about/at sb/sth)

2) to make a deep continuous sound

1) a person who introduces, or gives information about, programmes on radio or television

2) a person who gives information about sth in a station, an airport, etc., especially through a loudspeaker

1) the size of sth between opposite surfaces or sides

2) a layer of sth

extreme in a way that has a sudden, serious or violent effect on sth

1) the process of a liquid, gas or other substance being taken in

2) the process of a smaller group, country, etc. becoming part of a larger group or country

3) the fact of sb being very interested in sth so that it takes all their attention: ~ (in sth)

to run or swim a short distance very fast

adj. causing extreme terror

1) to reduce the amount of work, debt, worry, etc. that sb has

2) to feel or make sb feel less sad, worried or serious: ~ (sth) (up)

to damage or spoil sth good

a poisonous substance, especially one that is produced by bacteria in plants and animals