The 'basis' group
These nouns refer to the basis or grounds for something.
Have you ever felt vulnerable on account of your size?
Most lawyers will provide advice on this basis.
He was subsequently arrested on charges of plotting a coup.
People have criticised this film on the grounds that it is 'just another period drama'.
That team was selected on merit.
'I have no complaints on that score,' he says.
The following year, largely on the strength of his good looks and handsome physique, he landed a supporting part in a Broadway show.
In the case of assumption, basis, premise, and principle, upon is sometimes used instead of on.
on ability on account of ... on condition that ... on instinct on merit on points on principle on suspicion of ... on ... account on ... analysis on ... authority on ... charges on ... evidence on ... form on ... terms on the facts on the strength of ... on that/this score
They advocated humane treatment based upon psychoanalytic principles.
The following are used as normal count nouns. With the exception of sliding scale, they are always used with words which make the meaning more specific.
assumption basis count footing ground lines premise principle sliding scale time scale