“fit”

Because.

In the state of being active, functioning or operating.

Designating the side of the body which is positioned to the east if one is facing north, the side on which the heart is not located in most humans. This arrow points to the reader's right: →

Most; largest.

The act of using.

The act of obtaining or acquiring; acquisition.

Containing the maximum possible amount that can fit in the space available.

Of low quality.

A task.

A collection of sheets of paper bound together to hinge at one edge, containing printed or written material, pictures, etc.

To give money or other compensation to in exchange for goods or services.

A small amount of something.

The place where anything is fixed; situation; local position

Fitting its definition precisely.

A portion of something, especially a portion given or allotted to someone.

Something that is both a benefit and an affliction.

Start off on a good note to reap the benefits at the end.

Physical fitness leads to mental acuity.

To get into or inside something, literally or figuratively.

To bribe, especially to deter oversight.