Differance (n.) is term that means on the one hand 'deffer' as in temporal postponement... and on the other 'differ' as in different spatialy. Encompassing both of these meanings simultaneously, it points to the differential structure of our tenuous hold on 'presence'.
Differance (n.) is a process, not an action we perform or undergo, and the only source of meaning.
Differance (n.) is without content; it does not name any kind of presence or transcendence. It is not a concept. Indeed, it is not even a word.
Differance (n.) is the notion that Writing is triumphantly shown to invade the act of speaking (in that writing is a tool required to differentiate homonyms).
Differance (n.) is the deferral of the imagined concept or meaning by the signifier, which takes its place and in the process relegates it beyond access.