An ace is a playing card. In the standard French deck, an ace has a single suit symbol (a heart, diamond, spade, or club) located in the middle of the card, sometimes large and decorated, especially in the case of the ace of spades.
Acetic acid /əˈsiːtᵻk/, systematically named ethanoic acid /ˌɛθəˈnoʊᵻk/, is a colourless liquid organic compound with the chemical formula CH3COOH (also written as CH3CO2H or C2H4O2).
Acetone (systematically named propanone) is the organic compound with the formula (CH3)2CO. It is a colorless, volatile, flammable liquid, and is the simplest ketone.
Acetylcysteine, also known as N-acetylcysteine or N-acetyl-L-cysteine (NAC), is a medication used to treat paracetamol (acetaminophen) overdose and to loosen thick mucus such as in cystic fibrosis or chronic obstructive pulmonary disease.
Acetylcholine (ACh) is an organic chemical that functions in the brain and body of many types of animals, including humans, as a neurotransmitter—a chemical released by nerve cells to send signals to other cells.
Acer Inc. (/ˈeɪsər/ or /ˈæzər/; Chinese: 宏碁股份有限公司; pinyin: Hóngqí Gǔfèn Yǒuxiàn Gōngsī, lit. Hongqi Corporation Ltd.; commonly known as Acer, stylised as acer, or formerly as acer & AceR) (AYE-serr) is a Taiwanese multinational hardware and electronics corporation specializing in advanced electronics technology and is headquartered in Xizhi, New Taipei City, Taiwan.
Aceh (/ˈɑːtʃeɪ/); (Acehnese: Acèh ([ʔaˈtɕɛh]); Jawi: اچيه; Dutch: Atjeh or Acheh; Indonesian: Provinsi Aceh) is a special region of Indonesia.
Paul Daniel "Ace" Frehley (/ˈfreɪli/; born April 27, 1951) is an American musician and songwriter best known as the former lead guitarist and founding member of the rock band Kiss.
Acetaldehyde (systematic name ethanal) is an organic chemical compound with the formula CH3CHO, sometimes abbreviated by chemists as MeCHO (Me = methyl).