How many 3 letter words can you make from INTO?

There are 5 valid 3-letter words that can be made from the letters INTO, and the highest scoring is ion at 3 points.

5 3 letter words from into

You can make 5 words of exactly 3 letters from INTO. The highest scoring is ion at 3 points.

ion: a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons
nit: a luminance unit equal to 1 candle per square meter measured perpendicular to the rays from the source
not: negation of a word or group of words
tin: a silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide
ton: a British unit of weight equivalent to 2240 pounds