The term 'way of doing something' can be described in three different ways: METHOD (6 letters), TECHNIQUE (9 letters), and modus operandi (13 letters). A METHOD is a particular procedure for accomplishing or approaching something, especially a systematic or established one. A TECHNIQUE is a skillful or efficient way of doing or achieving something. Modus operandi is a Latin phrase meaning 'mode of operation' and is used to refer to someone's habits or manner of working.