Please check.

[Anonymous]

Please tell me the real differences between:
delimit - limit (verb)
profit - benefit
profitable - benefitcial
train of events - chain of events
'Jane is a manager' - 'Jane is the manager'

Please choose the correct words, if both are correct, please tell me the difference:
Tell me (in/to) my face.
All you have done since you (stayed/have stayed) here....
Living in our modern world is different from (what/how) living used to be.

[Pete]

delimit - limit (verb)
Delimit -- to mark the boundaries or limits of something: The US Constitution delimits the functions of the different branches of the government. [It says what one branch does in contrast to what another branch does; i.e. it shows the boundary between them.]
Limit -- To prevent something from exceeding a set value: The US Constitution limits the power of the Federal government. [It sets a limit, and the government cannot go past it.]

profit - benefit -- Benefit is quite general; it has to do with something that is good for someone. Profit literally refers to making money or having some similar advantage on a transaction. Profit can be used in a figurative sense, and in that case, it takes on essentially the same meaning as benefit.

profitable - beneficial -- See the previous explanation.

train of events - chain of events -- These are both metaphors that mean the same.

'Jane is a manager' - Jane's occupation is that of manager.
'Jane is the manager' - You must be discussing the personnel of some organization. This says that Jane is the person who holds the position of manager there.

Please choose the correct words, if both are correct, please tell me the difference:

Tell me (<strike>in</strike>/to) my face. ["to my face" sounds natural.]

All you have done since you (stayed/<strike>have stayed</strike>) here....

Living in our modern world is different from (what/how) living used to be. [I think "what" sounds better, but I believe both are correct. "Living" is a gerund, which means that it shares properties of both a noun and a verb. When you use "what", you are emphasizing its meaning as a noun. When you use "how", you are emphasizing its meaning as a verb.]