1. To be in control; rule the roost.
2. To have dominance over; SYN. master.
3. To look down on; SYN. command, overlook, overtop.
To be larger in number, quantity, or importance; SYN. dominate, rule, reign, prevail.
To weigh more heavily; SYN. outweigh, overbalance, outbalance.
ETYM Latin praevalentia: cf. French prévalence. Related to Prevail.
1. The quality of prevailing generally; being widespread.
2. The degree to which something is prevalent; especially; the percentage of a population that is affected with a particular disease at a given time.