• 必かならず — surely, without fail
• 必要ひつよう — necessary
• 必死ひっし — desperate, frantic
• 必然ひつぜん — inevitable
• 必見ひっけん — must-see
• 必勝ひっしょう — certain victory

This character originally depicts a person clenching something tightly, symbolizing something that cannot be let go or avoided. It is used broadly in contexts where something is absolutely needed or sure to happen.

明日あしたは 必かならず 来きてください。
Please make sure to come tomorrow.

成功せいこうには 努力どりょくが 必要ひつようです。
Effort is necessary for success.

“ヒツ” is commonly used in compound words. The kun-yomi “かならず” expresses certainty and is often used on its own or at the beginning of imperative statements.