1. (informal) very fashionable and popular

Encyclopedia: All the rage

• syndication
• syndicator
• syndrome
• syne
• synecdoche
• synecdochic
• synecdochical
• synechia
• Synentognathi
• Synercus
• Synercus caffer
• syneresis
• synergetic
• synergism
• synergist
• synergistic
• synergistically
• synergy
• synesthesia
• synesthetic
• synesthetic metaphor
• synezesis
• Synge
• Syngnathidae
• Syngnathus