"formality" in the noun sense
1. formality, formalities
a requirement of etiquette or custom
"a mere formality"
2. formality, formalness
a manner that strictly observes all forms and ceremonies
"the formality of his voice made the others pay him close attention"
3. formality
compliance with formal rules
"courtroom formality"
Source: WordNet® (An amazing lexical database of English)
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