In that example, it should have been first-hand or firsthand. When multiple words are used together as an adjective, in this case an adjective-noun pair, those two should become hyphenated. I just wrote another example – it’s ‘adjective-noun’ because the two words are used as an adjective for pair, even though they would not ordinarily be hyphenated.

For the same reason, asking “is it ‘first hand’ or ‘first-hand’” would be meaningless, because it depends on the context, unless a stylistic choice is made to write ‘firsthand’ instead

I’m in my mid 20s and a woman and I found out recently that the skinny jeans I’ve been wearing for the last decade have supposedly been uncool the whole time. I don’t care. Style is personal, and I like them.

I really wish nominally progressive media outlets would stop adopting fascist uses of language without even putting it in scare-quotes. The EHRC code of practice is not based on biological sex ((mutable) physiological elements of the social construct ‘sex’) it’s based on sex assumed at birth – no matter the language they use in the text. Every time ‘biological sex’ is used unquestioningly to mean the latter, it reifies a fascist understanding of sex, and we slide a little closer to losing the rhetorical battle.

Maximum dynamic pressure. At max q, the mechanical stress on a spacecraft stops increasing and starts decreasing. If a spacecraft is going to blow up, it usually does so before max q.

Not sure how to make that apply here 🧐