In punctuation, the term dot is usually reserved for the middle dot ·, or to the glyphs 'combining dot above' ̇ and 'combining dot below' ̣ which may be combined with some letters of the extended Latin alphabets in use in Eastern European languages.
Example characters: ċ/Ċ from Maltese and Irish Gaelic (old orthography), ė/Ė from Lithuanian, ġ/Ġ from Maltese and Irish Gaelic (old orthography), ŀ/Ŀ from Catalan, ż/Ż from Polish, etc..
The dot above the lowercase i and j is not seen as a dot, but rather as part of the character, and the double dots above several Latin letters such as ä, ë etc. are not dots either, but are Umlauts or diaeresis.