• 刀(knife; blade)
• 辟(open; develop)

A knife chopping forcefully splits an object in two to open it up.

• 穴(row; gap)
• 工(craftsman; work)

An empty cave with nothing inside is just hollow space.

• 扌(hand; arm)
• 反(flip; opposite)

Using your hand to flip something upside down is the action of bending or pulling.

• 宀(roof)
• 丰(abundant; plentiful)
• 口(mouth; speech)

Under a roof, abundant speech can harm others.

• 刀(knife; blade)
• 辟(open; develop)

A knife chopping forcefully splits an object in two to open it up.

• 穴(row; gap)
• 工(craftsman; work)

An empty cave with nothing inside is just hollow space.

• 扌(hand; arm)
• 反(flip; opposite)

Using your hand to flip something upside down is the action of bending or pulling.

• 宀(roof)
• 丰(abundant; plentiful)
• 口(mouth; speech)

Under a roof, abundant speech can harm others.