Chiefly
71anaesthetic — chiefly British variant of anesthetic …
72anaesthetise — chiefly British variant of anesthetize …
73anaesthetist — chiefly British variant of anesthetist …
74analyse — chiefly British variant of analyze …
75annexe — chiefly British variant of annex II …
76apnoea — chiefly British variant of apnea …
77apophthegm — chiefly British variant of apothegm …
78arbour — chiefly British variant of arbor …
79ardour — chiefly British variant of ardor …
80armour — chiefly British variant of armor …