唯识宗

• 口(mouth; opening)RADICAL
• 隹(short-tailed bird; bird with short tail)PHONETIC

A mouth uttering the sound of assent sounds like a bird chirping in response.

• 言(speech; words)RADICAL
• 戠(engrave; imprint)PHONETIC

Using words to mark and distinguish all things is how we gain awareness.

• 宀(roof)RADICAL
• 示(spirit; ritual)ASSOCIATIVE

Ancestral spirits worshipped under the roof of a family lineage form the meaning of this character.