Both mum and mom are correct and mean mother. Mum is the usual word in British English; mom is the ...

Both metre and meter are correct. Metre is British English (the unit of length), meter is American English. Meter is ...

Both liter and litre are correct. Liter is American English, litre is British English. Both mean the same unit of ...

Analysis is correct (singular). Analyses is also correct — it is the plural of analysis. Analysis = a detailed study ...

Yourself (one word) is correct. Your self (two words) is not standard — use yourself. Have you ever wondered whether ...

Bearer is correct. Barer is also a real word, but it means something different — barer = more bare (the ...

Wandering = moving around without a fixed direction. Wondering = thinking or asking yourself about something. They are different words. ...

Emigrate and immigrate are different words. Emigrate = to leave your own country to live in another (she emigrated from ...

Bony is correct. Boney is incorrect as a spelling of bony (it is sometimes used as a name, but not ...