Ranked by relevance and common usage.
Keep "quintuplex" when the sentence already sounds natural, when a synonym would add unintended emphasis, or when readers need the most familiar wording. A synonym should clarify or sharpen the message, not simply make the sentence look more varied.
If two options seem close, choose the one that best matches the audience and purpose of the sentence.
Choose a synonym only if it keeps the core idea of "quintuplex" intact in the sentence you are editing.
Check whether the replacement sounds more formal, casual, emotional, technical, or forceful than the original word.
Read the full sentence after the swap. Keep the synonym only when the sentence becomes clearer or more precise.
Review note: Synonym lists are ranked with lexical data and reviewed for practical writing value. Use the comparison notes, sentence evidence, and source labels together; a high-ranking synonym can still be wrong when the audience, register, or grammar changes.
After choosing a replacement for "quintuplex", read the sentence once for meaning and once for rhythm. The best synonym should feel natural in the full sentence, not only accurate in a word list.
If the synonym makes the sentence slower, vaguer, or more dramatic than intended, keep "quintuplex" or choose a simpler alternative from the closest-match group.
11 total sentences available.
This was entered 1 ♅. iii., in November, 1776, and had the honour of being the object to which the grand forty-foot reflector was first directed, in February, 1787, under the designation of “quadruple.” As a trapezium it was gazed at, measured, and delineated, for upwards of fifty years, when Σ. announced it “quintuplex,” by the addition of the little star E.
Source: wiktionary
The use of those scientific duplex, quadruplex, and even quintuplex systems could then safely be brought into general use, and this would render possible much cheaper telegraphy.
Source: wiktionary
We need to point out that in some critical missions, the performance and reliability of a triplex system may not be high enough. In this case, the level of redundancy needs to be increased beyond a triplex system—a quintuplex system (K = 1, N = 5) or a double-triplex system (K = 2, N = 3).
Source: wiktionary
Indeed, physiologically considered, the liver is the great original duplex, while anatomically, it is the enigmatical quintuplex; for it has five lobes, five vessels, five ligaments, five fissures, and, singularlly^([sic]) enough, five letters spells its name.
Source: wiktionary
Showing 4 of 11 available sentences.
Closest matches include quintet, quintuple.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.