no sooner than; as soon as; immediately after
Used after the past tense of a verb to express that something happens right after another action, often with a sense of surprise or unexpectedness. Similar to かと思うと.
See also: かと思うと
No sooner had I left the house than it started raining.
at the thought of; when I think about
Expresses a reaction or feeling that arises just from thinking about something. Often used with emotions like sadness, happiness, or worry.
See also: かと思うと
彼は来たと思ったら、すぐに帰ってしまった。
He came, but then left again right away.
At the thought of the exam, I suddenly felt anxious.
When I thought of her smile, I naturally felt better.