"fundamentals" in the noun sense
1. fundamental
any factor that could be considered important to the understanding of a particular business
"first you must learn the fundamentals"
"let's get down to basics"
"fundamentals include a company's growth, revenues, earnings, management, and capital structure"
2. fundamental, fundamental frequency, first harmonic
the lowest tone of a harmonic series
Source: WordNet® (An amazing lexical database of English)
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