Could you please do something for me? (polite form)

acknowledgment, understanding

acknowledge

spot, dot / score, grade, mark(s) / point

items or goods

turn on

point; spot / decimal point / score (in a game); result; points / merit; worthy point / mark (e.g. in exam); grade; score / point (one's opinion, etc.); view; standpoint / skill; technique / dot; pixel / point (in an argument, story, etc.); matter; topic

zero on a test etc., no points earned / freezing point / zero (value of a function’s independent variables when the value of the function is zero)

to turn on, to switch on

The hiragana syllable ご (go). Its equivalent in katakana is ゴ (go).