• 口(mouth; opening)
• 可(can; agree)

An older brother is someone whose mouth always speaks approved words, repeated twice.

• 大(person stretching limbs; figure of person with outstretched arms and legs)

A person standing with arms and legs spread wide symbolizes greatness and magnificence.

• 力(strength; power)
• 口(mouth; speech)

Adding uses strength and words to increase.

• 口(mouth; opening)
• 可(can; agree)

An older brother is someone whose mouth always speaks approved words, repeated twice.

• 大(person stretching limbs; figure of person with outstretched arms and legs)

A person standing with arms and legs spread wide symbolizes greatness and magnificence.

• 力(strength; power)
• 口(mouth; speech)

Adding uses strength and words to increase.