Yes, you can use look in and look at interchangeably.
EX: Look in that mirror.
Look at that mirror.
It basically is saying the same thing.
No they can not be used interchangeably
The die axis is an expression of rotation in regards to the coins obverse when it is straight up and down. ?æSome use the term interchangeably with die alignment.
Most horsemen use the 2 terms interchangeably.
Yes. If you look in a dictionary, theater and theatre say the same definitions. They can be used interchangeably.
No difference. Some companies use each word interchangeably.
Apostrophes and quotation marks can be used interchangeably.
Yes you can, you cannot use the drums interchangeably however.
"Disallowed" and "unallowed" are both correct terms and can be used interchangeably to describe something that is not permitted or not allowed.
No, the left arrow key moves the cursor to the left in text, but the backspace deletes the letter immediately left of the cursor. You may be able to make it so you can use those two keys interchangeably if you alter with registration settings and stuff, but by default they do different functions.
There are multiple words for "I", depending on the level of politeness. Males will usually use "boku" or "ore", where females will generally use "watashi". All can be used interchangeably as "I".
England uses both metric and imperial measurements interchangeably. Retailers are required by law to use metric measurements, but they are allowed to quote both.
Yes, unless if one or the other is specified as "double strength", they can be used interchangeably.