Correct spelling for the English word "Tiver" is [tˈa͡ɪvə], [tˈaɪvə], [t_ˈaɪ_v_ə] (IPA phonetic alphabet).
The word "tiver" is a contraction of the verb "to have" in Portuguese, specifically the third person singular form "ele/ela tem", which translates to "he/she has" in English. The word "tiver" is often used in colloquial speech and informal writing as a short form of "tiveram", which means "they had" in Portuguese.