› FINANCE used to mean 'not including', to show that a particular right or advantage belongs to the seller and is not included in the sale or price of an investment: When a share goes ex-dividend, the purchaser is no longer entitled to receive the company's current dividend. → Compare cum › used before a job title or relationship to show that someone had that job or relationship in the past but does not have it now: He ended up suing his ex-boss for unpaid wages. an ex-colleague Formal complaints were made against the ex-chairmen and the ex-chief executive.
→ See also ex-all, ex-capitalization, ex-coupon, ex-dividend, ex-interest, ex-rights, ex-scrip