Cases of word usage

1) (an) opinion, explanation or criticism in speech or writing about an event, book, state of affairs etc (comment)

2) an idea, suggestion, put forward as a starting-point for reasoning or an explanation (hypothesis)

3) not generous; selfish; (of a person behaviour) cruel, unkind; occupying the middle position between two extremes; (of words, sentences etc) to have (something) as an explanation (mean)

4) (an instance of) making a process, an explanation etc seem too easy (over-simplification)

5) to make (a process, explanation etc) seem too easy (over-simplify)

6) a detailed explanation of how to prepare (food); a piece of advice (recipe)

7) (an explanation of) the general principles of an art or science; a reasoned account offered to explain facts or events; an opinion or idea that is not necessary based on known facts or reasoning (theory)