1. Occurring or operating at the same time
   - coincident, coincidental, coinciding, concurrent, co-occurrent, simultaneous

1. Go with, fall together
   - coincide, cooccur

See also: synchronal, synchronic, synchronous

Type of: coexist

• rideable
• rider
• Rider Haggard
• rider plate
• riderless
• ridge
• ridge rope
• ridge tile
• ridged
• ridgel
• ridgeline
• ridgeling
• ridgepole
• ridgil
• ridgling
• ridgy
• ridicule
• ridiculer
• ridiculous
• ridiculously
• ridiculousness
• riding
• riding bitt
• riding boot
• riding breeches