Cash; physical money (banknotes and coins) available on hand.
財布に現金がほとんど入っていなかった。
There was almost no cash in my wallet.
店では現金とカード、どちらも使えますか？
Can I use both cash and cards at the store?
家賃は現金で払うつもりだ。
I plan to pay the rent in cash.
Mercenary; money-minded; calculating — describing someone who prioritizes financial gain.
あの人は現金だから、給料のいい会社にしか行かない。
He's money-minded, so he'll only go to companies that pay well.
現金な態度は友人関係を壊すことがある。
A mercenary attitude can ruin friendships.