This is in the spirit of the What is a Word™/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles.

If a word conforms to a certain rule, I call it a Special PoS Word™. Use the following examples to find the rule:

$$ % set Title text. (spaces around the text ARE important; do not remove.) % increase Pad value only if your entries are longer than the title bar. % \def\Pad{\P{0.0}} \def\Title{\textbf{ Special PoS }} % \def\S#1#2{\Space{#1}{20px}{#2px}}\def\P#1{\V{#1em}}\ \def\V#1{\S{#1}{9}} \def\T{\Title\textbf{Words }^™\Pad}\def\NT{\Pad\textbf{Not}\T\ }\displaystyle \smash{\lower{29px}\bbox[yellow]{\phantom{\rlap{rubio.2017.02.04}\S{6px}{0} \begin{array}{cc}\Pad\T&\NT\\\end{array}}}}\atop\def\V#1{\S{#1}{5}} \begin{array}{|c|c|}\hline\Pad\T&\NT\\\hline % \text{ADVICE}&\text{ADVERB}\\ \hline \text{PRACTICE}&\text{PRACTICAL}\\ \hline \text{DEVICE}&\text{DEMISE}\\ \hline \text{LICENCE}&\text{LENIENT}\\ \hline \end{array}$$

CSV version:


Perhaps these are the only such words exist in standard English.

Also, as a bonus, provide a reasonable expansion for PoS.

  • $\begingroup$ only PoS words or non-PoS words? (exist in standard English) $\endgroup$ – JMP Oct 11 '17 at 10:37
  • 1
    $\begingroup$ I feel like there's not enough examples for this puzzle - if there's only so many "such words" it may be a matter of adding more examples for the other side. I have a hunch, but (ROT13) ner bssrapr be qrsrapr fcrpvny cbf jbeqf? $\endgroup$ – Sp3000 Oct 11 '17 at 11:30
  • $\begingroup$ @JonMarkPerry, well a reasonable doubt. Only those many Special PoS words exist. $\endgroup$ – Mea Culpa Nay Oct 11 '17 at 11:47
  • $\begingroup$ how many non-special PoS words exist? $\endgroup$ – JMP Oct 11 '17 at 11:49
  • $\begingroup$ No cap/limit on non-special PoS words :-), though ! $\endgroup$ – Mea Culpa Nay Oct 11 '17 at 11:52

A PoS word is ...

One in which changing the last C to an S changes its Part of Speech from a noun to the verb that matches that noun.



This apparently relies on

the UK style spelling of some of the words, as in the US we don't use "practise" or "licence", and "practice" and "license" are used for either part of speech.

  • $\begingroup$ yes, you nailed it! $\endgroup$ – Mea Culpa Nay Oct 11 '17 at 13:15
  • $\begingroup$ ...which might explain the TM suffix, which, in the UK, stands for 'Totally Meaningless' $\endgroup$ – Strawberry Oct 11 '17 at 16:52

I think a PoS word is:

A Word in which you can change a "C" into an "S" and get another word.


PractiCe-> PractiSe
and So on.

They are called PoS word because:

Maybe, it has to do something with the Position of "S"

  • $\begingroup$ If this is MCN's intention then "Perhaps these are the only such words in standard English" is very, very wrong. back/bask, came/same, cane/sane, ... $\endgroup$ – Gareth McCaughan Oct 11 '17 at 11:31
  • $\begingroup$ Good attempt and answer as well. Got the underlying intention correctly, but not in full / complete, particularly expansion of PoS is to be looked at. $\endgroup$ – Mea Culpa Nay Oct 11 '17 at 11:50

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