As nouns the difference between attention and announcement

is that attention is mental focus while announcement is an act of announcing, or giving notice.

As an interjection attention

is {{cx|military|lang=en}} Used as a command to bring soldiers to the attention position.

As a noun tumble is

a fall.

As a verb tumble is

(lb) to fall end over end.

As adjectives the difference between groggy and drowsy

is that groggy is slowed or weakened, as by drink, sleepiness, etc while drowsy is inclined to drowse; heavy with sleepiness; lethargic; dozy.

As nouns the difference between barbiturates and benzodiazepine

is that barbiturates is while benzodiazepine is benzodiazepine.

As verbs the difference between complex and compleated

is that complex is (chemistry|intransitive) to form a complex with another substance while compleated is (compleat).

As an adjective complex

is made up of multiple parts; composite; not simple.

As a noun complex

is a problem.

As nouns the difference between mild and brief

is that mild is (british) a relatively low-gravity beer, often with a dark colour; mild ale while brief is letter (written message).

As an adjective mild

is gentle and not easily provoked.

As nouns the difference between disorder and abnormality

is that disorder is absence of order; state of not being arranged in an orderly manner while abnormality is the state or quality of being abnormal; variation; irregularity .

As an adjective omnichannel

is using every channel.

As a noun funnel is

a utensil of the shape of an inverted hollow cone, terminating below in a pipe, and used for conveying liquids etc into a close vessel; a tunnel.

As a verb funnel is

to use a funnel.

As verbs the difference between appeared and seemed

is that appeared is (appear) while seemed is (seem).

As a noun hub

is lifting.

As an adjective ubiquitous is

being everywhere at once: omnipresent.