1. Move in large numbers
   "Tourists teemed through the museum";
   - pour, swarm, stream, pullulate
    
2. Be teeming, be abuzz
   "The plaza is teeming with undercover policemen";
   - pullulate, swarm
    
3. [informal] Rain heavily
   "Put on your rain coat— it's teeming outside!";
   - pour, pelt, rain cats and dogs [informal], rain buckets [informal], belt down [informal], pelt down [informal], bucket [Brit, informal], tip [Brit, informal], chuck it down [Brit, informal], chuck [Brit, informal]

Sounds like: tea, tee, ti, te, T

Derived forms: teems, teeming, teemed

Type of: buzz, crowd, crowd together, hum, rain, rain down, seethe

Encyclopedia: Teem