There is only one meaning of philosophy but unfortunately its not known yet. Let me tell you the complexity of the definition of philosophy in the words of famous physicist Max Planck- In analysis we are a part of the mystry we are trying to solve.
Now let try to comprehend what is the meaning of philosophy we know but we dont know its correct or incorrect.
Philosophy is the study of general and fundamental problems, such as those connected with reality, existence, knowledge, values, reason, mind, and language. Philosophy is distinguished from other ways of addressing such problems by its critical, generally systematic approach and its reliance on rational argument. In more casual speech, by extension, "philosophy" can refer to "the most basic beliefs, concepts, and attitudes of an individual or group".
Philosophy is divided into many sub-fields. These include epistemology, logic, metaphysics, ethics, and aesthetics. Some of the major areas of study are considered individually below.
Epistemologyis concerned with the nature and scope of knowledge, such as the relationships between truth, belief, perception and theories of justification.