litter, fill, migrate, invade, overtake, breach, riddle, leak, flood, overlap, contaminate, insinuate, intrude, overwhelm, disturb, swamp, consume, yawn, crowd, infest, encroach, overflow, colonize, impinge on, teem, bleed into/through, trespass on/upon, flow into, run into, spread into, stretch into, extend into, sprawl into, populate, people