Words in english starting with A

• accommodation endorser — Noun – English ～ a person who endorses a promissory note without compensation or benefit but simply as a favor to the borrower
• alternative energy — Noun – English ～ energy derived from sources that do not use up natural resources or harm the environment
• activation energy — Noun – English ～ the energy that an atomic system must acquire before a process (such as an emission or reaction) can occur; "catalysts are said to reduce the energy of activation during the transition phase of a reaction"
• atomic energy — Noun – English ～ the energy released by a nuclear reaction
• Atomic Energy Commission — Noun – English ～ a former executive agency (from 1946 to 1974) that was responsible for research into atomic energy and its peacetime uses in the United States
• aircraft engine — Noun – English ～ the engine that powers and aircraft
• automobile engine — Noun – English ～ the engine that propels an automobile
• auxiliary engine — Noun – English ～ (nautical) a small engine (as one used on board ships to operate a windlass)
• army engineer — Noun – English ～ a member of the military who is trained in engineering and construction work
• automotive engineer — Noun – English ～ an engineer concerned with the design and construction of automobiles
• aeronautical engineer — Noun – English ～ an engineer concerned with the design and construction of aircraft
• aerospace engineer — Noun – English ～ an engineer of aircraft and space vehicles
• architectural engineering — Noun – English ～ the branch of engineering that deals with the construction of buildings (as distinguished from architecture as a design art)
• automotive engineering — Noun – English ～ the activity of designing and constructing automobiles
• aeronautical engineering — Noun – English ～ the branch of engineering science concerned with the design and construction of aircraft
• aeronautical engineering — Noun – English ～ the activity of designing and constructing aircraft
• African American English — Noun – English ～ a nonstandard form of American English characteristically spoken by African Americans in the United States
• American English — Noun – English ～ the English language as used in the United States
• abstract entity — Noun – English ～ a general concept formed by extracting common features from specific examples
• accounting entry — Noun – English ～ a written record of a commercial transaction

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