What does "attention span" mean?

The length of time, or span that one can pay attention, or concentrate on one topic without becoming distracted.

How do you pronounce "attention span"?

Pronounced //əˈtɛn.ʃən spæn//.

Common synonyms include: assiduity, awareness, care, concentration, consciousness, consideration.

/əˈtɛn.ʃən spæn/ noun

noun ·Rare ·Advanced level

Noun

1
The length of time, or span that one can pay attention, or concentrate on one topic without becoming distracted.
"He has learning difficulties because of his short attention span."
2
the length of time you can concentrate on some idea or activity wordnet

"He has learning difficulties because of his short attention span."