even if one says

smile, happy face, smiling face

a baby, an infant (human or animal)

赤ちゃん: baby

to say, to tell somebody / to call, to name, to give a name / to cry, to call, to make a noise (such as an animal)

in other words; what I (you, etc.) mean is

to startle; to surprise; to astonish

past tense and perfective aspect of 言う (iu, yū) [godan]

nonetheless, although, be that as it may

having a comeback or excuse for everything one is told, being smart in the sense of having a smart mouth