1. Fitting closely
   "the vest fit snugly" 
2. Safely protected
   "concealed snugly in his hideout" 
3. Warmly and comfortably sheltered
   "sitting snugly by the fireside while the storm raged"

See also: snug

• life-of-man
• life-or-death
• life-sized
• life-support
• life-support system
• life-sustaining
• life-threatening
• lifeblood
• lifeboat
• lifeguard
• lifehack
• lifeless
• lifelessly
• lifelessness
• lifelike
• lifeline
• lifelong
• lifer
• lifesaver
• lifesaving
• lifesize
• lifespan
• lifestyle
• lifetime
• Triglochin maritima