(What I think is the) answer:
How someone talks of something through their perspective.
Explanation:
With a colleague (workplace mate) you'd talk from a professional standpoint but if you were to talk with a friend you'd speak more casually about stuff.
I think the answer is "words that seem opposite or different" because it somewhat indicate a sentence which contains a comparison context clue.
Answer:
The aspect of languages contained in the sentence which speakers must avoid is <em>Incorrect Grammar.</em>
Explanation:
The sentence reads - "Fire<em><u> distinguishes</u></em> are generally colored red"
The correct sentence is - "Fire <em><u>extinguishers</u></em> are generally colored red"
Notice the error. The speaker says <em>distinguishers </em>instead of <em>extinguishers.</em>
The above is an example of grammatical error and must be avoided for sakes of clarity.
Cheers!