abstract
balance
bio
care
charity
children
concept
conservancy
creative
design
earth
eco
ecology
education
environment
evergreen
friend
give
graphic
green
grow
happy
health
healthy
help
human
icon
leaf
life
lifestyle
logo design
logotype
nature
organic
peace
people
plant
preserve
protect
renewal
representative
save
sign
success
sustainable
symbol
tree
unit
viable