The phrase "in business" can be replaced with a number of synonymous phrases to convey the same meaning. Some synonyms might include "operational," "running," "functioning," "active," or "working." Each of these phrases implies that a business is up and running, conducting transactions and operations as usual. The synonymous phrases are often interchangeable and can be used to add variety to one's writing. When discussing a business that is active and working properly, it's important to use phrases that accurately convey its current status and level of success. By using synonyms for "in business," writers can keep their language fresh and engaging while still conveying the necessary message.