Comprehension typically refers to one's ability to understand another's words, whether heard or read.

There may be some contexts, such as in a school, where students say things without really knowing the meaning. Comprehension may refer to this as well, but I need something more specific and professional that will be understood to mean "understanding one's own words".

What is a term that specifically refers to one's ability to understand what they themselves are saying?

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    Neither comprehend not understand have the "another's" tag. Have you checked a dictionary? Also, the words mean the same, so, if understand can apply to oneself, then technically, so can comprehend. – Kris Sep 19 '19 at 10:35
  • @Kris Ah, the there's a strong possibility that synonymity here is broad enough for the words to be interchangeable in this usage 'technically'. – Edwin Ashworth Sep 19 '19 at 11:06
  • Huh, @EdwinAshworth Aint so? – Kris Sep 19 '19 at 11:15
  • Btw, nor not not -- typo. – Kris Sep 19 '19 at 11:16
  • I think the problem is not understanding one's own words, rather than understanding them....Also, what do you mean by comprehension, anyway? It is not usually applied to oneself. I think here you really mean: realize what they are actually saying. – Lambie Nov 18 '19 at 17:19

An idiomatic expression for this is to have a full / good command of the language.

command [n] ... 2 ... d: facility in use

a good command of French


Van Eyck did not have full command of either classical Greek or Latin, and made errors, so readings by modern scholars are divided.

[ludwig.guru_have a full command of]

If knowledge of the subject matter is being focused on,

"She knows what she's talking about / her stuff / her onions"

are idiomatic expressions, decreasing in formality. She has a good command of her subject is again available if formality is required.

  • Having a good command of the language certainly includes what the OP calls comprehension of one's own words, but it seems much broader than that. – jsw29 Oct 19 '19 at 14:49
  • Yes; it's a hypernym. Though 'comprehension' in language is, as OP says, orientated towards being able to decipher another's meaning. – Edwin Ashworth Oct 19 '19 at 15:27

"Autofluency", though not an existing word, seems most appropriate for this role, don't you think?

  • "Non-existing 'words' " are off-topic on ELU. – Edwin Ashworth Mar 17 '20 at 19:17

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