A light wave is a type of electromagnetic wave. Light waves on the electromagnetic spectrum include those that are visible as well as those that are invisible to the human eye.
invade, occupy(verb) march aggressively into another's territory by military force for the purposes of conquest and occupation. Synonyms: lodge in, invade, occupy, encroach upon, engross, obtrude upon, intrude on, busy, worry, absorb, engage, reside, concern, overrun, fill, infest, interest, take, use up.
conâ¢quer. 1. to acquire by force of arms; win in war: to conquer a foreign land. 2. to overcome by force; subdue; vanquish: to conquer an enemy. 3. to gain or win by effort, personal appeal, etc.: conquered the hearts of the audience. 4. to gain a victory over; surmount; master; overcome: to conquer one's fear.