Usually written in kana. Kanji spelling 五万と
in a great quantity; plentifully; greatly
Adverb
心惹こころひかれる言語げんごは五万ごまんとあるんだけどね。悲かなしいかな、それ全部ぜんぶを嗜たしなむには人生じんせいがあまりにも短みじかすぎる。ただそれだけだよ。
Yet there are so many fascinating languages that it's sad, isn't it? Life's too short to learn them all. Anyway, that's all I'm saying.