Words Starting with AC: Master List and Usage Tips

Discover a variety of words starting with “ac” to enhance your vocabulary and understanding of the English language.

  1. Academic- related to education or scholarship.
  2. Acanthus- a plant with thick, spiky leaves.
  3. Accelerate- to increase speed.
  4. Accent- a way of pronunciation typical of a particular region.
  5. Accept- to receive or agree to.
  6. Access- the right or opportunity to use or benefit from something.
  7. Accident- an unexpected event causing damage or injury.
  8. Acclaim- praise enthusiastically and publicly.
  9. Accommodate- provide lodging or sufficient space for.
  10. Accompany- to go along with someone.
  11. Accomplish- to achieve or complete successfully.
  12. Accord- an agreement or treaty.
  13. Account- a record or statement of financial expenditure and receipts.
  14. Accumulate- gather together or acquire an increasing number or quantity of.
  15. Accuracy- the quality or state of being correct or precise.
  16. Accuse- claim that someone has done something wrong.
  17. Ache- a continuous or prolonged dull pain in a part of one’s body.
  18. Achieve- successfully bring about or reach (a desired objective or result) by effort.
  19. Achromatic- without color.
  20. Acid- a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red.
  21. Acknowledge- accept or admit the existence or truth of.
  22. Acme- the point at which someone or something is best, perfect, or most successful.
  23. Acne- a skin condition characterized by red pimples on the skin.
  24. Acoustic- relating to sound or the sense of hearing.
  25. Acquaint- make someone aware of or familiar with.
  26. Acquire- buy or obtain for oneself.
  27. Acquit- free (someone) from a criminal charge by a verdict of not guilty.
  28. Acrid- having an irritatingly strong and unpleasant taste or smell.
  29. Acrobat- a performer who performs acrobatic feats.
  30. Acronym- an abbreviation formed from the initial letters of other words and pronounced as a word.
  31. Acropolis- a citadel or fortified part of an ancient Greek city, typically built on a hill.
  32. Across- from one side to the other of.
  33. Act- take action; do something.
  34. Actinium- the chemical element of atomic number 89, a radioactive metal.
  35. Activate- make (something) active or operative.
  36. Active- engaging or ready to engage in physically energetic pursuits.
  37. Activist- a person who campaigns for some kind of social change.
  38. Activity- a condition in which things are happening or being done.
  39. Actor- a person whose profession is acting on the stage, in movies, or on television.
  40. Actual- existing in fact; real.
  41. Acumen- the ability to make good judgments and quick decisions.
  42. Acupuncture- a system of complementary medicine that involves pricking the skin or tissues with needles.
  43. Acute- present or experienced to a severe or intense degree.
  44. Adapt- make (something) suitable for a new use or purpose; modify.
  45. Addict- a person who is addicted to a particular substance.
  46. Address- the particulars of the place where someone lives or an organization is situated.
  47. Adjoin- be next to and joined with.
  48. Adjust- alter or move (something) slightly in order to achieve the desired fit, appearance, or result.
  49. Administrate- supervise; carry out administrative tasks.
  50. Admire- regard with respect or warm approval.
  51. Admit- confess to be true or to be the case.
  52. Adopt- legally take another’s child and bring it up as one’s own.
  53. Adore- love and respect (someone) deeply.
  54. Adorn- make more beautiful or attractive.
  55. Adult- a person who is fully grown or developed.
  56. Advance- move forwards in a purposeful way.
  57. Advantage- a condition or circumstance that puts one in a favorable or superior position.
  58. Adventure- an unusual and exciting or daring experience.
  59. Adverb- a word or phrase that modifies the meaning of an adjective, verb, or other adverb.
  60. Adverse- preventing success or development; harmful; unfavorable.
  61. Advice- guidance or recommendations concerning prudent future action.
  62. Advise- offer suggestions about the best course of action to someone.
  63. Advocate- publicly recommend or support.
  64. Aerial- existing, happening, or operating in the air.
  65. Aesthetics- a set of principles concerned with the nature and appreciation of beauty.
  66. Affable- friendly, good-natured, or easy to talk to.
  67. Affect- have an effect on; make a difference to.
  68. Affinity- a spontaneous or natural liking or sympathy for someone or something.
  69. Affirm- state as a fact; assert strongly and publicly.
  70. Afflict- cause pain or suffering to; affect or trouble.
  71. Affluent- having a great deal of money; wealthy.
  72. Afraid- feeling fear or anxiety; frightened.
  73. After- in the time following (an event or another period).
  74. Again- another time; once more.
  75. Against- in opposition to.
  76. Age- the length of time that a person has lived or a thing has existed.
  77. Agency- a business or organization established to provide a particular service.
  78. Agenda- a list of items to be discussed at a formal meeting.
  79. Agent- a person who acts on behalf of another person or group.
  80. Agile- able to move quickly and easily.
  81. Aging- the process of becoming older.
  82. Agitate- make (someone) troubled or nervous.
  83. Agnostic- a person who believes that nothing is known or can be known of the existence or nature of God.
  84. Ago- in the past; before now.
  85. Agree- have the same opinion about something; concur.
  86. Agriculture- the science or practice of farming.
  87. Ahead- further forward in space; in front.
  88. Aid- help, typically of a practical nature.
  89. Ail- trouble or afflict (someone) in mind or body.
  90. Aim- point or direct (a weapon or camera) at a target.
  91. Air- the invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.
  92. Aircraft- a vehicle that can fly.
  93. Aisle- a passage between rows of seats in a building such as a church or theater, an airplane, or a train.
  94. Alarm- an anxious awareness of danger.
  95. Album- a collection of recordings issued as a single item on CD, record, or another medium.
  96. Alcohol- a colorless volatile flammable liquid that is the intoxicating constituent of wine, beer, spirits, and other drinks.
  97. Alert- quick to notice any unusual and potentially dangerous or difficult circumstances; vigilant.
  98. Algebra- the part of mathematics in which letters and other general symbols are used to represent numbers and quantities.
  99. Alias- a false or assumed identity.
  100. Alibi- a claim or piece of evidence that one was elsewhere when an act, typically a criminal one, is alleged to have taken place.

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