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Signs & symbols
Glyph
Social Black Buttons
Kik
Black
512x512
Krug, moi
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UI
Blogger
Key
DarkSlateGray
38x38
Google Material Design icons
Key, Vpn
Very Basic. Android L (Lollipop)
secure, protect, Key
Social media
Social Set
socialpack, Kickstarter, Social
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Mixed
Simple Icons
Key, Lock
Icons Solid
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Material Core
Keep
307x512
Family & home
Star Wars
rebel, Kessel run, spaceship
Black Socicons
wen, wer kennt wen, wer
Kaixin
Kaboodle
shopping website
locked, Key, key lock
256x256
Octicons
448x512
Keyboard
Social Glyph
Kickstarter
480x480
Typicons
FatiCons
Windows 8 metro style
kiosk, Self, Service
kiss
Knife