1An abbreviated, casual way of saying "thank you" (short for どうもありがとう); common in everyday conversation.
荷物を持ってもらって、どうも。
Thanks for carrying my bags.
「どうも、助かりました」と彼女は笑って言った。
"Thanks, that really helped," she said with a smile.
お土産をもらったので、どうもと言ってお礼をした。
Since I received a souvenir, I thanked them with a quick どうも.
2An adverb used to intensify an apology or expression of thanks, as in 「どうもすみません」("I'm very sorry") or 「どうもありがとう」("thank you very much").
どうもすみません、遅れてしまいました。
I'm very sorry, I'm running late.
お忙しいところ、どうもありがとうございます。
Thank you very much for taking the time despite being busy.
3An adverb close in meaning to "quite" or "really," expressing a high degree.
その説明はどうも分かりにくい。
That explanation is quite hard to understand.
彼女の話はどうも本当らしい。
Her story really does seem to be true.
4An adverb meaning "somehow" or "for some reason," used when the cause is unclear but a feeling or impression is present.
今日はどうも体がだるい。
For some reason my body feels sluggish today.
あの人の話はどうも信じられない。
Somehow I just can't believe what that person says.
5An adverb meaning "no matter how (hard one tries)," used with a negative outcome despite effort; close in meaning to どうしても.
どうも彼を説得することができなかった。
No matter how I tried, I couldn't persuade him.
どうも思い出せない名前がある。
There's a name I just can't seem to recall, try as I might.
6A casual greeting that can be used both when meeting and when parting.
久しぶりに会った同僚に「どうも」と声をかけた。
I greeted my colleague, whom I hadn't seen in a while, with a casual "hey."
会議が終わり、みんなに「どうも、お疲れさまでした」と言って帰った。
After the meeting ended, I said "thanks, great work everyone" to everyone and left.