to start sleeping, especially unintentionally
寝る (neru)
"He dropped off to sleep while watching TV."
"彼はテレビを見ながら寝てしまった。" (kare wa terebi o minagara nete shimatta)
to express gratitude in a sincere way
to gradually feel more comfortable and happy in a situation
to progress gradually toward a better state or process
to be blocked or separated by something
to reserve money for a particular purpose
to lead someone into a room or building
