41.active adj.

42.actively adv.

43.activity n.

44.actor, actress n.

45.actual adj.

46.actually adv.

47.ad advertisement

48.adapt v.

49.add v.

50.addition n.

51.in addition (to)

52.additional adj.

53.address n., v.

54.adequate adj.

55.adequately adv.

56.adjust v.

57.admiration n.

58.admire v.

59.admit v.

60.adopt v.