Base-operation is a term used in various fields, including military, computing, and financial sectors. Some of the synonyms for base-operation are fundamental operation, core function, essential duty, basic task, key process, and principal activity. These synonyms highlight the crucial role base-operations play in various industries, such as in military operations where base-operation refers to the primary duties performed by a particular military base. In computing, base-operations refer to the primary functions of a computer system, whereas in finance, it refers to the primary financial functions, such as budgeting and financial planning. In summary, synonyms for base-operation suggest that it is a fundamental and essential aspect of any field.