101

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101

 (wŭn′ō-wŭn′)
adj. Informal
Elementary; basic: You should never leave your baby alone in the bathtub—that's just parenting 101.

[From the common use of the number 101 to designate introductory-level courses at universities and colleges.]

101

(ˈwʌn oʊˈwʌn)
adj.
comprising the introductory material in or as if in a course of study (used postpositively): Economics 101; Life 101; It's Jungle 101 on a trip up the Amazon.
[1985–90]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.101 - being one more than one hundred101 - being one more than one hundred  
cardinal - being or denoting a numerical quantity but not order; "cardinal numbers"