Fool & Foolish – On the occasion of April Fools’ Day, there is a group of related terms to be introduced. Firstly, ‘to fool’ means to deceive or to trick. The word ‘fool’ can also be a noun with three different meanings: 1) someone of poor intelligence, 2) a jester and 3) a kind of dessert. ‘Foolish’, the adjective form, is about 1) lacking good sense or 2) lacking good judgement. Meanwhile, ‘foolishly’ and ‘foolishness’ are its adverb and noun forms.