Vocabulary What does 愛犬 (あいけん, aiken) mean? 愛犬 (あいけん, aiken) means pet dog; beloved dog. Quick factsReadingあいけんRomajiaikenPart of speechnoun 愛犬あいけんaikenpet dog; beloved dog1noun pet dog; beloved dog2noun love of dogs; fondness for dogsKanji in this word愛love犬dog