Meaning of いっぽう in Japanese

Definition of いっぽう

いっぽう(ippou) 【一報】

いっぽう(ippou) 【一方】

(n) one (esp. of two); the other; one way; the other way; one direction; the other direction; one side; the other side; one party; the other party
床は緑色に塗られていたが、一方壁は黄色だった。
The floor was painted green, while the walls were yellow.
(conj) on the one hand; on the other hand →Related words: 他方
しかし、その一方、ラテン語はそのときまでに「死語」となっていた。
But, then again, Latin was already a "dead language" by that time.
whereas; although; but at the same time; meanwhile; in turn
(n-adv, n-suf) (after noun, adjective-stem or plain verb) just keeps; being inclined to ...; tending to be ...; tending to do ...; continuously ...; just keeps on ...ing; only
本屋で英語関係の本を見つけると、次々に買ってしまって、読まずにいるので、たまる一方です。
I always buy the English-language books I come across at bookstores. But since I never read them, all they do is pile up.