plural of smile; facial expressions showing pleasure, amusement, or approval
From Middle English, possibly from Scandinavian origin, related to 'smirk'
Smiling is contagious because of mirror neurons in our brains - when we see someone smile, our brain automatically prepares our face muscles to smile back! It's also the longest word you can spell with just one syllable.
Complete word intelligence in one call. Free tier — 50 lookups/day.