4-Letter Words Starting: AC

• causing a dull and steady pain

• a dull persistent (usually moderately intense) pain

• feel physical pain

• have a desire for something or someone who is not present

• be the source of pain

• any group or radical of the form RCO- where R is an organic group

• the highest level or degree attainable; the highest stage of development

• the highest point (of something)

• any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt

• street name for lysergic acid diethylamide

• harsh or corrosive in tone

• being sour to the taste

• having the characteristics of an acid

• (US) To pass (a test, interviews etc.) perfectly.

• To win a point by an ace.

• To make an ace (hole in one).

• a New Testament book describing the development of the early church from Christ's Ascension to Paul's sojourn at Rome

• a state in western Brazil bordering on Bolivia and Peru

• a unit of area (4840 square yards) used in English-speaking countries

• a town and port in northwestern Israel in the eastern Mediterranean

• an inflammatory disease involving the sebaceous glands of the skin; characterized by papules or pustules or comedones