"minder" in the noun sense
someone (usually in totalitarian countries) who is assigned to watch over foreign visitors
"I turned around and there, a few hundred feet away, was our government minder, Li Wong Su, huffing and puffing toward us"
2. babyminder, baby minder, minder
a person who looks after babies (usually in the person's own home) while the babys' parents are working
Source: WordNet® (An amazing lexical database of English)
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