As nouns the difference between terms and flashboard
is that terms is while flashboard is (us) a board placed temporarily upon a milldam, to raise the water in the pond above its usual level.
terms
English
Noun
(head)
Statistics
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flashboard
English
Alternative forms
* flushboard
Noun
(
en noun)
(US) A board placed temporarily upon a milldam, to raise the water in the pond above its usual level.
(
Webster 1913)