fluency

As an adverb fluidly

is in a fluid manner.

As a noun fluency is

the quality of smoothness of flow.

In linguistics|lang=en terms the difference between competency and fluency

is that competency is (linguistics) implicit knowledge of a language’s structure while fluency is (linguistics) the quality of being fluent in a language; a person's command of a particular language.

As nouns the difference between competency and fluency

is that competency is (obsolete) a sufficient supply (of) while fluency is the quality of smoothness of flow.

As nouns the difference between fluency and diff

is that fluency is the quality of smoothness of flow while diff is (slang).

As a verb diff is

(computing) to run a diff program on (files or items) so as to produce a description of the differences between them, as for a patch file.

As a proper noun diff is

(computing) a program, historically part of the unix operating system, which compares two files or sets of files and outputs a description of the differences between them.

As an adjective coherent

is coherent.

As a noun fluency is

the quality of smoothness of flow.

As nouns the difference between fluency and proficient

is that fluency is the quality of smoothness of flow while proficient is an expert.

As an adjective proficient is

good at; skilled; fluent; practiced, especially in relation to a task or skill.

As nouns the difference between perspicuity and fluency

is that perspicuity is clarity, lucidity, especially in expression; the state or characteristic of being perspicuous while fluency is the quality of smoothness of flow.

As nouns the difference between fluency and coherence

is that fluency is the quality of smoothness of flow while coherence is coherence, consistence, consistency.

In linguistics|lang=en terms the difference between fluency and fluency

is that fluency is (linguistics) the quality of being fluent in a language; a person's command of a particular language while fluency is (linguistics) the quality of being fluent in a language; a person's command of a particular language.

As nouns the difference between fluency and fluency

is that fluency is the quality of smoothness of flow while fluency is the quality of smoothness of flow.

As nouns the difference between smooth and fluency

is that smooth is something that is smooth, or that goes smoothly and easily while fluency is the quality of smoothness of flow.

As an adjective smooth

is having a texture that lacks friction. Not rough.

As an adverb smooth

is smoothly.

As a verb smooth

is to make smooth or even.

As nouns the difference between fluency and pronunciation

is that fluency is the quality of smoothness of flow while pronunciation is the standard way in which a word is made to sound when spoken.