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.
Meaning: Take (territory) as if by conquest. Classified under: Verbs of buying, selling, owning. Context example: Hitler annexed Lithuania. Hypernyms (to annex is one way to...): arrogate; assume; seize; take over; usurp (seize and take control without authority and possibly with force; take as one's right or possession) Troponyms (each of the following is one way to annex): colonise; colonize (settle as a colony; of countries in the developing world)