1. Now and then or here and there
   "as we drove along, the beautiful scenery now and then attracted his attention"
   - occasionally, on occasion, once in a while, now and again, at times, from time to time

Encyclopedia: Now and then, Here and There

• proprietary colony
• proprietary drug
• proprietor
• proprietorial
• proprietorship
• proprietorship certificate
• proprietress
• propriety
• proprioception
• proprioceptive
• proprioceptor
• proprionamide
• props
• propulsion
• propulsion system
• propulsive
• propyl
• propyl alcohol
• propyl group
• propyl radical
• propylaeum
• propylene
• propylene glycol
• propylon
• propylthiouracil