aer
ambi/amphi
anim
audi
bene/bon
100

pertaining to or caused by the presence of oxygen; (of an organism or tissue) requiring the presence of air or free oxygen for life

aerobic
100

relating to, living in, or suited for both land and water

amphibious
100

full of life or excitement; lively

animated
100

of or relating to the sound that is heard on a recording or broadcast

audio
100

something given to somebody in addition to what is usual or owed

bonus
200

A gaseous or airborne cloud of particulate matter, either as a solid, liquid, or gas, which forces another substance out of a spray can

aerosol
200

having mixed feelings or conflicting ideas about something or someone

ambivalent
200

not alive, especially not in the manner of animals and humans

inanimate
200

heard or able to be heard

audible
200

having a desire to do good

benevolent
300

 having a shape that reduces drag when moving through the air

aerodynamic
300

uncertainty or inexactness of meaning in language

ambiguity
300

a strong feeling of hostility

animosity
300

a short performance to show the talents of someone, such as an actor or a musician, who is being considered for a role in a play, a position in an orchestra, etc.

audition
300

of a mild or gentle type or character; not becoming cancerous

benign
400

living, active, occurring, or existing in the absence of free oxygen; of, relating to, or being activity in which the body incurs an oxygen debt

anaerobic
400

describing a person who is able to use the right and left hands equally well

ambidextrous
400

very generous or forgiving, especially toward a rival or someone less powerful than oneself

magnanimous
400

a large room or building where people gather to watch a performance, hear a speech, etc.

auditorium
400

one who helps another especially by giving money

benefactor
500

a science dealing with the operation of aircraft; the art or science of flight

aeronautics
500

capable of having two meanings

ambiguous
500

a musical term: to be played in a lively animated manner

animato
500

a branch of science dealing with hearing; specifically; therapy of individuals having impaired hearing

audiology
500

doing or producing good; performing acts of kindness or charity

beneficent
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