minder

noun

1. someone (usually in totalitarian countries) who is assigned to watch over foreign visitors

   noun.person

   Examples

   I turned around and there, a few hundred feet away, was our government minder, Li Wong Su, huffing and puffing toward us.

   Source: WordNet 3.0

2. a person who looks after babies (usually in the person's own home) while the babys' parents are working

   noun.person

   Synonyms baby minder babyminder

   Source: WordNet 3.0

3. One who minds, tends, or watches something, as a child, a machine, or cattle; as, a <i>minder</i> of a loom.

   noun

   Source: webster1913