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safety [safeties]▼◼◼◼noun[UK: ˈseɪf.ti] [US: ˈseɪf.ti]
safety factor▼◼◼◻noun
element of uncertainty▼◼◼◼noun[UK: ˈel.ɪ.mənt əv ʌn.ˈsɜːtn.ti] [US: ˈel.ɪ.mənt əv ʌn.ˈsɝː.tən.ti]
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