Capable of being affiliated or connected with; able to form an association or partnership.
From affilate + -able suffix meaning 'capable of.' Affiliate comes from Medieval Latin affiliāre 'to adopt as a son,' combining ad- 'to' + fīlius 'son,' with the meaning shifting to 'associate with or attach to an organization.'
When you see 'affiliable' in business documents, it usually means an organization can legally partner with or adopt another company under its umbrella—like how a small local business might be affiliable with a large national franchise.
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