ph.

1. now and then or here and there

e.g. he was arrogant and occasionally callous
open areas are only occasionally interrupted by clumps of trees
they visit New York on occasion
now and again she would take her favorite book from the shelf and read to us
as we drove along, the beautiful scenery now and then attracted his attention

Synonym: occasionallyon occasiononce in a whilenow and thennow and againat times