Aluminium and aluminum are two correct spellings of the same chemical element with the atomic number 13. The confusion exists ...

Ageing and aging are two correct spellings of the same word. They both describe the process of growing older in ...

Travelling and traveling are both correct spellings of the present participle and gerund form of the verb travel. The difference ...

Travelled and traveled are both correct spellings of the past tense and past participle of the verb travel. The confusion ...

Labelled and labeled are both correct spellings of the past tense and past participle of the verb label, meaning to ...

Dreamt and dreamed are both correct past tense and past participle forms of the verb dream. The confusion exists because ...

Theatre and theater are both correct spellings of the same word that refers to a place where plays, musicals, and ...