flowchart vs flow sheet

flowchart and flow sheet both are nouns.

Word	Noun	Adjective	Verb	Adverb
flowchart	Yes	No	No	No
flow sheet	Yes	No	No	No

As nouns, flowchart and flow sheet are synonyms defined as:

flowchart and flow sheet: a diagram of the sequence of operations in a computer program or an accounting system

Other synonyms of flowchart include flow chart, flow diagram.

flowchart (noun)	flow sheet (noun)
a diagram of the sequence of operations in a computer program or an accounting system	a diagram of the sequence of operations in a computer program or an accounting system