1. With no problems or difficulties
   "put the plans into effect quickly and smoothly"
   - swimmingly 
2. In a smooth and diplomatic manner
   "'And now,' he said smoothly, 'we will continue the conversation'"

See also: smooth

• family Tilletiaceae
• family Timaliidae
• family Tinamidae
• family Tineidae
• family Tingidae
• family Tipulidae
• family Titanosauridae
• family Todidae
• family Torpedinidae
• family Tortricidae
• family Toxotidae
• family Trachipteridae
• family Tragulidae
• family Trapaceae
• family tree
• family Tremellaceae
• family Trephritidae
• family Treponemataceae
• family Triakidae
• family Tribonemaceae
• family Trichechidae
• family Trichiuridae
• family Trichodontidae
• family Tricholomataceae
• family Tridacnidae