1. As an undiversified whole
   "the unions voted solidly for Roosevelt" 
2. With strength and soundness
   "a solidly built house"

See also: solid

• preeclampsia
• preemie
• preeminence
• preeminent
• preeminently
• preemployment training program
• preempt
• preemption
• preemptive
• preemptive bid
• preemptive right
• preemptor
• preen
• preen gland
• preexist
• preexistence
• preexistent
• preexisting
• prefab
• prefabricate
• prefabrication
• preface
• prefactor
• prefaded
• prefatorial