1. In a wasteful manner
   "the United States, up to the 1920s, used fuel lavishly, mainly because it was so cheap"
   - extravagantly 
2. In a rich and lavish manner
   "lavishly decorated"
   - richly, extravagantly

See also: lavish

• pollenation
• pollex
• pollie
• pollinate
• pollination
• pollinator
• polling booth
• polling day
• polling place
• polling station
• pollinium
• pollinosis
• polliwog
• pollock
• polls
• pollster
• pollucite
• pollutant
• genus Oenothera
• genus Oestrus
• genus Okapia
• genus Olea
• genus Oleandra
• genus Olearia
• genus Olfersia