1. On certain occasions or in certain cases but not always
   "sometimes she wished she were back in England"; "sometimes her photography is breathtaking"; "sometimes they come for a month; at other times for six months"

Encyclopedia: Sometimes

• professor
• professorial
• professorially
• professoriate
• professorship
• proffer
• proficiency
• proficient
• proficiently
• profile
• profiler
• profiling
• profit
• profit and loss
• profit and loss account
• profit margin
• profit sharing
• profit taker
• profit-and-loss statement
• profit-maximising
• profit-maximizing
• profitability
• profitable
• profitableness
• profitably