BRITAIN'S armed forces have been ranked as the fifth more powerful military in the world. The list of the globe's most potent armies ranks the United States as the most feared military on the planet, with a power index rating of 0.1663. The US is estimated to have almost 9,000 tanks at its disposal and a further 14,000 aircraft.
heedverb [ T ] uk â /hiËd/ us â /hiËd/ formal. âº to pay attention to something, especially advice or a warning: The airline has been criticized for failing to heed advice/warnings about lack of safety routines.
To retard means to slow down, in case of aircraft it has a very clear meaning of Slow down as fast as you can. That some teens only know the word retard from the context of being disabled in intelligence, is not the problem of aircraft designers, but the problem of those teens if they decide to become aerospace engineers one day.