No definitions found for 'on-again-off-again'
Perhaps one of these:
on camera,
omniscience,
ongoing,
onguent,
onekama, mi,
on condition,
omnigenous,
owings mills, md,
onagon,
ones complement,
owings, md,
owen county, in,
oenocyan,
once and for all,
once more,
oncometer,
on account of,
owen county,
on commission,
omasum,
onekama,
omnisciently,
ong, ne,
onychomys,
onosmodium,
omnisciency,
once in a while,
onyx marble,
onychomancy,
one-quintillionth,
once in a blue moon,
owen county, ky,
onesimus,
omniscient,
once and again,
onychium,
owings mills,
oncoming,
omission,
on-going