amphibian.noun
a cold blooded (regulates its body temperature largely by exchanging heat with its surroundings), smooth-skinned vertebrate of the class Amphibia, such as a frog or salamander, that characteristically hatches as an aquatic larva with gills. The larva then transforms into an adult having air-breathing lungs; an animal capable of living both on land and in water; an aircraft that can take off and land on either land or water; a tracked or wheeled vehicle that can operate both on land and in water

annotation.noun
the act or process of providing explanatory notes; a commentary

annotate, annotated, annotating, annotates.verbs
transitive verb use.to furnish.(a literary work) with commentary or explanatory notes
annotative.adjective
annotator.noun

anonymous.adjective
having an unknown or withheld authorship or agency (an anonymous letter; an anonymous phone call; an anonymous author); having no distinctive character or recognition factor

advance, advanced, advancing, advances.verbs
transitive verb use.to move or cause to move forward; to put forward; propose or suggest (advanced a novel.theory during the seminar); to aid the growth or progress of; to raise in rank; promote; to cause to occur sooner (advance a deadline by one week); to pay before due; to supply or lend; 
intransitive verb use.to go or move forward or onward; to make progress; improve; to rise in rank, position, or value
advance.noun
the act or process of moving or going forward; a forward move, as toward an objective; progress (an advance in free energy); payment of money before due (an advance on next week's salary)
advance.adjective
made or given ahead of time (an advance payment); going before, in front, or forward
in advance.idiom
ahead of time; beforehand
in advance of.idiom
in front of; ahead of
advancer.noun

advancement.noun
forward step; an improvement; development; progress.(the advancement of knowledge thanks to the computer); the act of moving forward

advice.noun
opinion about what could or should be done; counsel; information communicated

advise, advised, advising, advises.verbs
transitive verb use.to offer advice to; counsel; to recommend; suggest; to inform; notify
intransitive verb use.to take counsel; consult

arithmetic.noun
the mathematics of integers, rational numbers, real numbers, or complex numbers under addition, subtraction, multiplication, and division; a book on this kind of mathematics
arithmetic.or.arithmetical.adjective
arithmetically.adverb
arithmetician.noun

algebra.noun
a generalization of arithmetic in which symbols, usually letters of the alphabet, represent numbers or members of a specified set of numbers and are related by operations that hold for all numbers in the set; a set together with operations defined in the set that obey specified laws
algebraist.noun

algebraic.adjective
of, relating to, or designating algebra; designating an expression, an equation, or a function in which only numbers, letters, and arithmetic operations are contained or used
algebraically.adverb

anywise.adverb
in any case; regardless of what has occurred or will occur

assail, assailed, assailing, assails.transitive verbs
to attack with or as if with violent blows; assault; to attack verbally, as with ridicule or censure; to trouble; beset: was assailed by doubts
assailable.adjective
assailableness, assailer, assailment.nouns

abuse, abused, abusing, abuses.transitive verbs
to use wrongly or improperly; to assail with contemptuous, coarse, or insulting words; revile
abuse.noun
improper use or handling; misuse (drug abuse, abuse of the people of a nation)
abuser.noun

abusive.adjective
of or relating to abuse; characterized by abuse.(abusive government policies and tactics); physically injurious to another (bullies)
abusively.adverb

attention.noun
concentration of one's mind upon something; a close or careful observing or listening; observant consideration; notice (once we looked closely we noticed intricacies of design in the flowers); consideration or courtesy (attention to others' feelings)
attention.interjection
used as a command to assume an erect military posture
attentional.adjective

attentive.adjective
giving care or attention; watchful (attentive to detail); offering devoted and assiduous attention to the pleasure or comfort of others; thoughtful
attentively.adverb
attentiveness.noun