godan verb (-bu), transitive verb
recollect; remember fondly; be nostalgic for
Often used for quietly or fondly recalling a person, the past, or a place no longer present; more literary or elevated than 思い出す.
友人たちは故人を偲んで集まった。
The friends gathered to remember the deceased.
古い写真を見ながら
Looking at old photos, I reminisced about my student days.
godan verb (-bu), transitive verb
imagine; infer; guess from traces
Used when imagining or inferring what something was like from remains, signs, or circumstances; this sense is usually written in kana and has a somewhat literary feel.
遺跡から当時の暮らしをしのぶことができる。
From the ruins, we can imagine what life was like at the time.
その手紙から、彼女の苦労をしのぶ。
From the letter, I infer the hardships she went through.