condition of heightened watchfulness or preparation for action; "bombers were put on alert during the crisis"
very attentive or observant; "an alert and responsive baby is a joy"; "caught by a couple of alert cops"; "alert enough to spot the opportunity when it came"; "constantly alert and vigilant, like a sentinel on duty"
(usually followed by `to') showing acute awareness; mentally perceptive; "alert to the problems"; "alive to what is going on"; "awake to the dangers of her situation"; "was now awake to the reality of his predicament"
not unconscious; especially having become conscious; "the patient is now awake and alert"
shaped to fit by or as if by altering the contours of a pliable mass (as by work or effort); "a shaped handgrip"; "the molded steel plates"; "the wrought silver bracelet"
having the shape of; "a square shaped playing field"
using (or as if using) mechanisms or tools or devices; "a mechanical process"; "his smile was very mechanical"; "a mechanical toy"
relating to or governed by or in accordance with mechanics; "a belief that the universe is a mechanical contrivance"; "the mechanical pressure of a strong wind"
relating to or concerned with machinery or tools; "mechanical arts"; "mechanical design"; "mechanical skills"
a military aircraft that drops bombs during flight
a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States
the act of exploding or bursting something; "the explosion of the firecrackers awoke the children"; "the burst of an atom bomb creates enormous radiation aloft"
a golf shot from a bunker that typically moves sand as well as the golf ball
a sudden outburst; "an explosion of laughter"; "an explosion of rage"
a violent release of energy caused by a chemical or nuclear reaction
the noise caused by an explosion; "the explosion was heard a mile away"
a sudden great increase; "the population explosion"; "the information explosion"
the act of systematically moving a finely focused beam of light or electrons over a surface in order to produce an image of it for analysis or transmission
the process of translating photographs into a digital form that can be recognized by a computer
the military forces of a nation; "their military is the largest in the region"; "the military machine is the same one we faced in 1991 but now it is weaker"
associated with or performed by armed services as contrasted with civilians; "military police"
characteristic of or associated with soldiers or the military; "military uniforms"
of or relating to the study of the principles of warfare; "military law"
know and comprehend the nature or meaning of; "She did not understand her husband"; "I understand what she means"
perceive (an idea or situation) mentally; "Now I see!"; "I just can't see your point"; "Does she realize how important this decision is?"; "I don't understand the idea"
believe to be the case; "I understand you have no previous experience?"
make sense of a language; "She understands French"; "Can you read Greek?"