Word: Leftbook
Part of speech: Proper noun
Syllables: left
book
Definition: Proper noun~ The leftist groups and communities on Facebook.
Morphemes:
Affix: left
Language: en
PoS: Noun
Meaning: The ensemble of left-wing political parties. Those holding left-wing views as a group.
Affix: Facebook
Language: en
PoS: Verb
Meaning: To use the social-networking site Facebook.