旅行で

on a trip

→ 旅行
phrase Uncommon #16,151
on a trip Used with で to describe something done during or because of a trip; depending on context, it can also mean “while traveling” or “for a trip.”
JA: 旅行で京都に行った。
EN: I went to Kyoto on a trip.

二人は旅行で来ただけよ

The two of them are just here on vacation.

— 暗殺の森 (1971)

旅行でたくさん写真を撮りました

I took lots of pictures on my trip.

たま旅行で長かったからね

It was a long trip since I don’t get to travel often.

— 東京物語 (1953)

サラの父に電話した今日から旅行で留守でした

I called Sarah’s father, but he was away on a trip starting today.

— サスペリア (1977)

旅行で使ったお金全部説明がつきますか

Can you account for all the money you spent on the trip?

その旅行で彼の知識は大いに増えた

That trip greatly expanded his knowledge.

旅行でこのガイドブック役に立つかもしれません

This guidebook might come in handy on your trip.

旅行で食べたもので一番興味深かったものは何ですか

What was the most interesting thing you ate on your trip?

私が旅行で留守中に泥棒が入った

A burglar broke into my house while I was away on a trip.

外国旅行でプラスになることがたくさんあるでしょう

There are probably many benefits to traveling abroad.

彼は旅行で留守にしています

He is away on a trip.

私は旅行で楽しい経験をした

I had a great experience on my trip.

旅行で記念メダルを買いました

I bought a commemorative medal on my trip.