There are several terms that can be used as synonyms for the phrase "appeal for fund." One possible alternative is "fundraising campaign," which refers to a coordinated effort to solicit donations from individuals or organizations. Another option is "fund drive," which specifically refers to a period of time during which an organization or individual actively attempts to raise funds. "Donation solicitation" and "crowdfunding" are also commonly used phrases for soliciting financial contributions. Finally, "fundraising event" can be used to refer to an event that is specifically organized to raise money for a particular cause or charity.