A matter of indifference; a matter having no importance or consequence.

(obsolete) It is just the same; it makes no difference.

(idiomatic) Intensely, vigorously, with as much effort as one can supply.

(literally) In full splendour and power (e.g. of a deity or monarch). / (informal, idiomatic, euphemistic) Completely naked.

Possibly or conceivably, given one's limited knowledge.

With much sincerity. / (dated) Very willingly.

(mathematics) A polynomial all of whose coefficients are 1.

plural of all-one polynomial

using as much strength and effort as possible.

written in a single word.