Yes, plot is a Scrabble word!

Verb

1. Plan secretly, usually something illegal

2. Make a schematic or technical drawing of that shows interactions among variables or how something is constructed

3. Make a plat of

4. Devise the sequence of events in (a literary work or a play, movie, or ballet)

Noun

1. A secret scheme to do something (especially something underhand or illegal)

2. A small area of ground covered by specific vegetation

3. The story that is told in a novel or play or movie etc.

4. A chart or map showing the movements or progress of an object