History
History
History
UK
US
Meaning:

the verb 'be' when used to join a subject to its compliment, as in 'The baby is a boy', 'It is Thursday today'

intersection, juncture

elbow seam abutment articulation bend bond bracket bridge concourse confluence conjuncture connection copula coupling crux hinge hyphen impingement interconnection junction knot link meeting nexus node point splice suture swivel tangency tie union vinculum
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COPULA as in Wiktionary
COPULA as in Wikipedia