Fetching details from the dictionary...
big welcome; welcoming greatly; being very welcome
新しいアイデアは大歓迎だ。
New ideas are very welcome.
仲間が増えることは大歓迎だと代表が述べた。
The representative said that more members joining was very welcome.
ボランティアの参加は大歓迎なので気軽に申し込んでほしい。
Volunteer participation is very welcome, so please feel free to apply.