What is the meaning of Fitting?

That fits.

1. Chiefly preceded by a descriptive adverb or noun: that fits in some manner (often closely) to the shape or size of something.

   Chiefly preceded by a descriptive adverb or noun: that fits in some manner (often closely) to the shape or size of something.

   Appropriate, suitable, proper.

   gerund of fit: an act of making something fit (“conform in shape and size; be suitable for; etc.”).

   1. An act of trying on an item of clothing to adjust or inspect how well it fits.

   An act of trying on an item of clothing to adjust or inspect how well it fits.

   2. A (generally small) component or part of a device or machine, especially one that is standardized and replaceable; specifically, a standardized part of a piping system used to connect sections of pipe together, such as a coupling.
   3. The process of fitting up; especially, of applying skilled methods to the installation of components to machines or other products.

   A (generally small) component or part of a device or machine, especially one that is standardized and replaceable; specifically, a standardized part of a piping system used to connect sections of pipe together, such as a coupling.

   The process of fitting up; especially, of applying skilled methods to the installation of components to machines or other products.

   A removable item (such as a carpet, a movable piece of furniture, or a picture) in a house or other building, which can be taken with one when moving out.

   present participle and gerund of fit

   gerund of fit: the action or condition of having one or more fits (“convulsions or seizures”).

   Source: wiktionary.org