While both "subtlety" and "subtleness" are acceptable noun forms of the adjective "subtle," "subtlety" has historically been the more prevalent and established term for referring to the quality or state of being subtle.

"Provok" is not a valid English word. The correct spelling is "provoke." "Provoke" is a verb in English, and it means to intentionally stimulate or cause a reaction or response from someone or something.

Both "meagreness" and "meagerness" are correct spellings, and they have the same meaning. The difference lies in the preferred spelling based on the regional variation of English

"Oul" is the Irish variant of "old," but it can also be a misspelling for the word "owl." "Oul" is not considered standard English and is not accepted in formal writing.

"Spicket" is a common misspelling of "spigot," which is a small plug that is used in a vent, pipe, or cask. This misspelling may have come about because some people pronounce "spigot" as "spicket."

"Grool" is a misspelling of "gruel," which is an inexpensive simple porridge typically made from grains with water or milk. The misspelling "grool" may have come about because that is how "gruel" is pronounced.

"Defunction" means the act of dying. The word is not commonly used in English, and it is from the Latin defunctus, which means "off-duty" or "to discharge or finish.

"Wheelbarrel" is a common misspelling of "wheelbarrow," which is a small cart that is typically for carrying loads for gardening. Because "wheelbarrow" is commonly mispronounced as "wheelbarrel," it is also commonly misspelled that way.

"Loggets," or "loggat," is a game formerly played in England in which participants throw pieces of wood at a stake. Because of how uncommon the word is, "logget" may be a misspelling of "locket," "logged," or "logger."