A concrete noun is something more real, less abstract, than an abstract noun. It may not be a physical object like a table or a car,
but its sense is adjectrive-based than, say, the abstract nouns 'beauty' or
See also: how to make
abstract nouns with -ság from adjectives,
and making nouns with -ás from verbs.
The endings -at, -et
may be used to create concrete nouns that usually express the result of an action.
(to) give up
(a) task, exercise