Translation guide
To smile broadly means to smile with a wide, open, and often joyful expression. In Japanese, this is commonly expressed with verbs like にっこり笑う or 満面の笑みを浮かべる, or with onomatopoeic adverbs like にこにこ or にっこり.
Express a wide, happy smile, often in a friendly or cheerful context.
A very common and natural way to say 'smile broadly'. にっこり is an onomatopoeic adverb for a brief, bright smile.
She smiled broadly and greeted me.
Literally 'to wear a full-face smile'. This is a slightly more literary or descriptive expression for a beaming smile.
He smiled broadly as he received the award.
にこにこ implies a continuous, gentle, broad smile, often used for a cheerful, sustained expression.
The baby is smiling broadly.
A four-character compound meaning 'breaking into a broad smile'. It is literary and somewhat formal, often used in writing.
He broke into a broad smile at the joke.
Emphasize a wide smile that shows teeth, sometimes with a nuance of a grin or a big, open smile.
Literally 'to smile showing teeth'. This is a straightforward way to describe a broad, toothy smile.
He smiled broadly, showing his teeth.
にやり is an onomatopoeia for a sly or meaningful grin, often a broad, knowing smile. It can carry a slightly mischievous nuance.
Literally 'to laugh with a wide-open mouth'. This emphasizes a very broad, open-mouthed smile or laugh, sometimes used for hearty laughter.
にっこり describes a single, bright, often momentary smile, while にこにこ describes a continuous, gentle smiling state. Use にっこり for a quick, broad smile and にこにこ for someone who is smiling happily over a period of time.
She smiled broadly and nodded.
He was smiling broadly all day.
He grinned broadly and revealed the secret.
The children were smiling broadly with their mouths wide open.