get the ax, give someone the ax
Achsah. Historical Examples Some hundreds of paces away the attack on the palace of Axa, where the Spaniards were entrenched, raged with fury. Montezuma’s Daughter H. Rider Haggard
axaf Advanced X-ray Astrophysics Facility
a defect of vision in which the retina fails to respond to yellow.
axbt airborne expendable bathythermograph