notional
US /ˈnoʊ.ʃən.əl/
UK /ˈnoʊ.ʃən.əl/

1.
existing only as an idea or in theory; not real or practical.
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The company made a notional profit, but no actual cash changed hands.
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They discussed the notional value of the property, not its market price.
2.
of or relating to a notion or concept.
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The philosopher explored the notional differences between mind and body.
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The grammar lesson focused on the notional meaning of verbs.