"Supply in hand" is a phrase commonly used to describe having enough of something readily available for use. In the world of business, this phrase can refer to having inventory on hand to meet customer demand or having enough resources to complete a project. Synonyms for "supply in hand" include "stock on hand," "inventory on hand," "available resources," "readily accessible materials," and "adequate provisions." These terms can all be used interchangeably to convey the message of having something readily available and within reach. When looking to describe having ample supplies or resources, using these synonyms can add variety and depth to business communication.