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sprout(v)
The weeds begin to sprout.
predator(n)
Wolves are the major predator of small mammals.
prey(n,v)
Cats prey on birds and mice.
swarm1 (n)
A swarm of bees.
swarm2 (n)
swarms of tourists/ swarms of journalists.
dormant (adj)
A huge dormant volcano/dormant project.
spawn1 (v)
Many sea fishes spawn in rivers.
spawn2 (v)
New technology has spawned new business opportunities.
breed(v)
Rats can breed every six months.
breed(n)
Spaniels are my favorite breed.