As a noun devotee

is an ardent enthusiast or admirer.

As an adjective pious is

of or pertaining to piety, exhibiting piety, devout, godfearing.

As a verb disconcert

is to upset the composure of.

As a noun bug is

god.

As nouns the difference between system and ability

is that system is system while ability is (obsolete) suitableness .

As a noun discrepancy

is an inconsistency between facts or sentiments.

As an adjective discrete is

.

As a noun reservoir

is reservoir.

As an adjective dan is

stretched.

As an adjective pricy

is (informal).

As a noun premium is

bonus (extra amount of money given as a premium).

As nouns the difference between indications and sign

is that indications is while sign is (sometimes|also used uncountably) a visible indication.

As a verb sign is

to make a mark.

As nouns the difference between indulgence and enjoyment

is that indulgence is the act of indulging while enjoyment is (uncountable) the condition of enjoying anything.

As a verb indulgence

is (roman catholic church ) to provide with an indulgence.

As adjectives the difference between aforementioned and upcoming

is that aforementioned is previously mentioned while upcoming is happening or appearing in the relatively near future.

As a noun aforementioned

is (uncountable) the one or ones mentioned previously.

As nouns the difference between identification and registry

is that identification is the act of identifying, or proving to be the same while registry is a building in which things are registered or where registers are kept.