# Rating words from best to worst

In my personal classification, certain words are assigned a rating based on some criteria. The top rating is AA, and below it the ratings go from A all the way down to Z. Seventeen AA-class words are listed below.

ants arms ingots limn mars nark nonvariant pi
rams rank rhino rip san sulk suns tans wart


Most words are unrated, whereas some words may qualify for multiple ratings. For example, pair would qualify for both an A-class and an S-class rating.

To my knowledge, there is exactly one word with a Z rating. What is it?

• From what list of words are these the only AA ones? – ZanyG Feb 4 '19 at 9:06
• @ZanyG I used an online tool (can't really tell which one without giving away the method), but it doesn't seem they have a publicly available word list... I'll remove the word "all" since there may be some other words which are in the dictionary but not listed by that particular site. – Jafe Feb 4 '19 at 11:22
• rot13: Jryy, gur trbtencul gnt xvaqn fcbvyrq vg, qvqa'g vg? – dquijada Feb 4 '19 at 12:43
• @dquijada Hmm, I thought it would be too difficult without it. Too many options to consider... Then again I'm constantly amazed at how quickly people solve these puzzles so maybe it would have been figured out regardless. – Jafe Feb 4 '19 at 12:46

The AA rated words are words which

which anagram to a country capital with AA appended.

The seventeen are

ants - Astana, arms - Asmara, ingots -Santiago, limn - Manila, mars - Asmara, nark - Ankara, nonvariant - Antananarivo, pi - Apia, rams - Asmara, rank - Ankara, rhino - Honiara, rip - Praia, san - Sanaa, sulk - Lusaka, suns - Nassau, tans - Astana, wart - Tarawa.

Following this rule a Z rated word is

barge - Zagreb is the capital of Croatia.

• How did you figure this out so quickly!? – BlueRaja - Danny Pflughoeft Feb 4 '19 at 15:41
• @Tom is one of the best solvers! – DrD Feb 4 '19 at 23:17