Noun

(en noun)

Subject; theme; a category or general area of interest.

*{{quote-magazine, date=2013-08-03, volume=408, issue=8847, magazine=(The Economist)

, title= The machine of a new soul , passage=The yawning gap in neuroscientists’ understanding of their topic is in the intermediate scale of the brain’s anatomy. Science has a passable knowledge of how individual nerve cells, known as neurons, work. It also knows which visible lobes and ganglia of the brain do what. But how the neurons are organised in these lobes and ganglia remains obscure. Yet this is the level of organisation that does the actual thinking—and is, presumably, the seat of consciousness.}}

(Internet) Discussion thread.

(obsolete) An argument or reason.

* Bishop Wilkins

contumacious persons, who are not to be fixed by any principles, whom no topics can work upon

(obsolete, medicine) An external local application or remedy, such as a plaster, a blister, etc.

(Wiseman)

Noun

(en noun)

(pejorative) A person with poor judgment or little intelligence.

You were a fool to cross that busy road without looking.

The village fool threw his own shoes down the well.

* Franklin

Experience keeps a dear school, but fools' will learn in no ' other .

(historical) A jester; a person whose role was to entertain a sovereign and the court (or lower personages).

(informal) Someone who derives pleasure from something specified.

* Milton

Can they think me their fool or jester?

* 1975 , , "Fool for the City" (song), Fool for the City (album):

I'm a fool for the city.

(cooking) A type of dessert made of d fruit and custard or cream.

an apricot fool'''; a gooseberry '''fool

A particular card in a tarot deck.