noun
A visible mark or sign used to indicate, identify, or remember something. 印 is the standard spelling; 標 is also attested for this sense.
間違えた箇所に赤い印をつけた。
I put a red mark on the part that was wrong.
noun
Used for something that represents a group, idea, rank, or identity, including an emblem, crest, badge, or flag. This merges the symbolic and physical-insignia uses while keeping both visible.
白いハトは平和の印とされる。
The white dove is regarded as a symbol of peace.
家紋は一族の印だった。
The family crest was the clan's emblem.
noun
Something that shows or proves a fact or state. Associated with this sense with 証 and 証し, but kana is often clearer when the intended reading is しるし.
この足跡は、誰かがここを通ったしるしだ。
These footprints are evidence that someone passed through here.
noun
token; small expression
Usually written in kana for a small token or gesture expressing gratitude, affection, apology, or goodwill, as in 感謝のしるし.
感謝のしるしに、花束を贈った。
I gave a bouquet as a token of thanks.
これはほんの気持ちのしるしです。
This is just a small token of my feelings.