taiav +cn

The string "taiav +cn" likely encodes the word "Taiwan". The "+cn" suggests a connection to China (country code .cn), and "taiav" resembles "Taiwan" with a slight alteration (v instead of w, missing n). Adding 'c' and 'n' to the letters in "taiav" yields an anagram that can be rearranged to "Taiwan" with minor adjustments, making this the most plausible interpretation.