I want to write "dos and don'ts", or an equivalent expression, in a university essay. I am assuming that it is not very academic to write "dos and don'ts", so does anyone have a better way of putti... phrase requests - Formal alternative for "dos and don'ts" - English ...

Understanding the Context

The following nGram suggests that dos and donts, do's and don'ts, and do's and don't's are all used, but it appears that do's and don'ts takes the cake. A quick search suggested that capitalizing all but the s is also fairly popular: Financial Post: Keep your shirt on: Dos and don'ts for that long-overdue update to your LinkedIn profile Keep your shirt on: Dos and don'ts for that long-overdue update to your LinkedIn profile The two senses of fascination each take a different preposition. A person has a fascination with something they are very interested in (her fascination with the royal family), whereas something interesting holds a fascination for a person (words have always held a fascination for me). Jon Snow was staring at him, a look equal parts horror and fascination.

Key Insights

I read this sentence in A Game of Thrones. Now I rewrite it into this version: Jon's look was equal parts horror and fascination. I know its meaning. But my question is what is the grammar phenomenon of "equal parts"... And note that the noun fascination is very common, whereas captivation is very rare.

Final Thoughts

It’s also worth bearing in mind the roots of the words: captivate is associated with being taken captive, and fascination with being spellbound. There are various other terms along the same lines, such as enchant, enthrall, bewitch, beguile.