Authorised and authorized mean exactly the same thing. The only difference is spelling. Authorised is the standard British English spelling, ...

Apologise and apologize mean exactly the same thing. The only difference is spelling. Apologise is the standard spelling in British ...

Programmed is the standard and correct spelling in American English. Programed is a much less common variant and is generally ...

Jewelry and jewellery mean the same thing. Jewelry is the preferred American English spelling, while jewellery is the standard British ...

Color and colour mean the same thing. Color is the preferred spelling in American English, while colour is the standard ...

Recognise and recognize mean exactly the same thing. The only difference is spelling. Recognize is the standard form in American ...

Restroom and bathroom both refer to a place where people use the toilet. Bathroom is the everyday word in most ...

Theatre and theater mean the same thing. Theatre is the preferred spelling in British English, while theater is the standard ...

Acknowledgement and acknowledgment mean the same thing. The only real difference is spelling: acknowledgement is more common in British English, ...

Both traveled and travelled are correct. The only difference is spelling. Traveled is the preferred spelling in American English, while ...