1. Someone who thinks he knows everything and refuses to accept advice or information from others
   - know-all

Derived forms: know-it-alls

Type of: egoist, egotist, swellhead [N. Amer]

Encyclopedia: Know-it-all

• genus Polygonatum
• genus Polygonia
• genus Polygonum
• genus Polyodon
• genus Polypedates
• genus Polypodium
• genus Polyporus
• genus Polyprion
• genus Polystichum
• genus Pomacanthus
• genus Pomacentrus
• genus Pomaderris
• genus Pomatomus
• genus Pomolobus
• genus Pomoxis
• genus Poncirus
• genus Pongamia
• genus Pongo
• genus Pontederia
• genus Pooecetes
• genus Popillia
• genus Populus
• genus Porcellio
• genus Poronotus
• genus Porphyra