1. Overlapping in duration
   "concurrently with the conference an exhibition of things associated with Rutherford was held"
   - at the same time

See also: concurrent

• sleep apnea
• sleep around
• sleep deprivation
• sleep disorder
• sleep in
• sleep late
• sleep off
• sleep out
• sleep talking
• sleep terror disorder
• sleep together
• sleep with
• sleep-learning
• sleeper
• sleeper cell
• sleeper goby
• sleeper nest
• sleepily
• sleepiness
• sleeping
• sleeping accommodation
• sleeping around
• sleeping bag
• sleeping beauty
• sleeping capsule