So many of these posts are very annoying as they indicate how little knowledge people have before swooping in with cries of tautology and the like.
But can you be a gunman and not armed.
Of course you can. You could be someone who uses guns / is a professional gunman & not armed in that instance.
The logic of adding 'armed' is provided by the context - the description is usually, sadly, used in cases of gun attacks. The addition of 'armed' is to signify the nature and threat of the attacker.
Global pandemic
Other posters got there before me - given we heard this so frequently over the last 3 years, you would think you might check out the exact meaning of pandemic first!
Planning is always done before the event.
Indeed. 'Planning ahead' however refers to a particular form of planning with a defined time period eg 'we are holding a meeting to allow us plan ahead for the next academic year'. 'Planning' alone is less determinate eg 'we are planning for the next academic year' - it can be continuous, is not time bound.
work colleague.
Nope. 'Work colleague' refers to the people I work with. I have other colleagues eg someone in another institution that I'm engaged in a research project with, and colleagues on a professional committee.
These are all colleagues, but work colleagues only refers to the ones in my workplace.
*Pre-order
*
I can see this, a little. However, bring it back to context. To pre-order is to order it ahead of the available ordering period. To 'pre order' a book, you order it in advance of publication. If you 'order' it, it's done when it's available to purchase. Similarly with food, you 'pre order' it ahead of when you expect to receive and eat it; when you order it, it's at time time you are present at the venue to re receive and eat it
I could go on for most of the examples given here!
Some of these so-called tautologies are to refine concepts.
Exactly.