Definition of predicate nominative in English:

predicate nominative

Syllabification: pred·i·cate nom·i·na·tive

noun

Grammar
A word in the nominative case that completes a copulative verb, such as son in the sentence Charlie is my son.
More example sentences
  • Later, if you want your child to know what a predicate nominative is, there will be plenty of time for that training.
  • No one cares if your children know what a predicate nominative is except the publishers of grammar workbooks.
  • But I did notice one pattern after a little more searching: ‘the boss of’ tends to occur in predicate nominatives - that is, in noun phrases after some form of be, as in ‘You're not the boss of me’.

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Word of the day hypnopompic
Pronunciation: ˌhɪpnə(ʊ)ˈpɒmpɪk
adjective
relating to the state immediately preceding waking up