"To keep expanding" means to continue increasing or growing in size, scope, or amount over a period of time. It implies ongoing and sustained development or extension, as in the example phrase 'They keep expanding knowledge,' where knowledge is continuously growing.
The phrase "to keep expanding" combines the verb "keep," originating from Old English "cepan" meaning to seize or hold, and "expanding," derived from Latin "expandere," meaning to spread out or unfold. Together, they convey the idea of maintaining or continuing the action of expansion.
