penetrating — able or tending to penetrate; piercing; sharp: a penetrating shriek; a penetrating glance.
noun entering
occupation — a person's usual or principal work or business, especially as a means of earning a living; vocation: Her occupation was dentistry.
subjugation — the act, fact, or process of subjugating, or bringing under control; enslavement: The subjugation of the American Indians happened across the country.
introgression — the introduction of genes from one species into the gene pool of another species, occurring when matings between the two produce fertile hybrids.
