1. Learn additional skills 
2. Teach someone additional skills, especially as an alternative to redundancy

Derived forms: upskilling

• 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
• prefatory
• prefect