connexion

As a letter s

is the letter s with a.

As a noun connexion is

(chiefly|uk).

As nouns the difference between connexion and null

is that connexion is (chiefly|uk) while null is zero, nil; the cardinal number before einn.

As nouns the difference between association and connexion

is that association is the act of associating while connexion is (chiefly|uk).

As a noun connexion

is (chiefly|uk).

As an adjective undefined is

lacking a definition or value.

As nouns the difference between nexus and connexion

is that nexus is (philosophy|rare|nonstandard) while connexion is (chiefly|uk).

As nouns the difference between relation and connexion

is that relation is relation while connexion is (chiefly|uk).

As nouns the difference between communication and connexion

is that communication is the act or fact of communicating anything; transmission while connexion is (chiefly|uk).

As nouns the difference between connexin and connexion

is that connexin is any of a class of transmembrane proteins that form assembled structures in vertebrates while connexion is an archaic spelling of lang=en.

As nouns the difference between connexion and connexon

is that connexion is (chiefly|uk) while connexon is (biochemistry) an assembly of six connexins forming a bridge called a gap junction between the cytoplasms of two adjacent cells.