amateur amateurs
NOUN someone who does something without being paid for it • He began playing football as an amateur, but now he is a professional.
amaze amazes, amazing, amazed
VERB If something amazes you, it surprises you very much.
SYNONYMS: astonish, astound
amazement NOUN
amazing
ADJECTIVE If something is amazing, it is very surprising.
amazingly ADVERB
ambassador ambassadors
NOUN a person sent to a foreign country as the representative of their own government
amber
NOUN 1 a hard, yellowish-brown substance from trees, used in making jewellery
NOUN OR ADJECTIVE 2 an orange-brown colour
ambiguous
ADJECTIVE If something is ambiguous, it can have more than one meaning.
ambiguously ADVERB ambiguity NOUN
ambition ambitions
NOUN If you have an ambition to do something, you want very much to do it.
amble ambles, ambling, ambled
VERB If you amble, you walk along in a slow, relaxed way.
ambulance ambulances
NOUN a vehicle for taking sick and injured people to hospital
ambush ambushes, ambushing, ambushed
NOUN 1 a surprise attack
VERB 2 If one group of people ambushes another, they hide and lie in wait, and then make a surprise attack.
ammonia
NOUN a strong-smelling, colourless liquid or gas, often used in cleaning substances
ammunition
NOUN anything that can be fired from a gun or other weapon, for example bullets and shells
amoeba amoebas or amoebae
NOUN a tiny living organism that has only one cell. An amoeba reproduces by dividing into two.
among or amongst
PREPOSITION 1 surrounded by
2 in the company of • He was among friends.
3 between more than two • The money will be divided among seven charities.
amount amounts
NOUN how much there is of something • You need a large amount of flour for this recipe.
amphibian amphibians
NOUN a creature that lives partly on land and partly in water, for example a frog or a newt
amphibious ADJECTIVE
amplify amplifies, amplifying, amplified
VERB If you amplify a sound, you make it louder.
amplifier NOUN
amputate amputates, amputating, amputated
VERB If a surgeon amputates part of the body, such as an arm or a leg, they cut it off.
amputation NOUN
amuse amuses, amusing, amused
VERB 1 If something amuses you, you think it is funny.
2 If you amuse yourself, you find things to do that stop you from being bored.