Literal universality (الاستغراق الحقيقي) encompasses all members to whom the term genuinely applies. Customary universality (الاستغراق العرفي) encompasses all members of a set bounded by the convention, place, occupation, or other contextual field. Each is comprehensive within its intended domain, but the domains differ.
TypeRelevant domainIllustration
Literal (حقيقي)All actual members of a classEvery member of the kind
Customary (عرفي)A complete contextually bounded setAll craftsmen of a given town or court
“Every” may therefore mean universal coverage of a kind or complete coverage of a contextually restricted class.