Flag, Banner
noun
The kanji and the word are exactly the same. That means they share meanings as well.
はた
Since this word is made up of a single kanji, it probably uses the kun'yomi reading. You did not learn this reading, so here's a mnemonic to help you: The one with the flag is the Mad Hatter (はた). Just imagine looking through a group of people. You have to find the Mad Hatter, and he has to find you. That's why he offered to wear a flag on his hat.
旗で合図を送る方法を学んでみたいです。
I'd like to learn how to send signals with a flag.
この旗は部族のシンボルとしてここにかかげられています。
This flag is put up here as a symbol of the tribe.
旗を作るイベントに参加して、オリジナルデザインを考えました。
I participated in a flag-making event and came up with an original design.
私は可愛い旗がついている爪楊枝を衝動買いしてしまいました。
I impulsively bought the toothpicks with cute flags on them.