How To Spell ob x m?
Correct pronunciation for the word "ob x m" is [ˈɒb ˈɛks ˈɛm], [ˈɒb ˈɛks ˈɛm], [ˈɒ_b ˈɛ_k_s ˈɛ_m].
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Usage over time for ob x m:
This graph shows how "ob x m" have occurred between 1800 and 2008 in a corpus of English books.