As a noun submultiple

is (mathematics) an integer that is an exact divisor of another.

As an adjective multiple is

multiple.

As a noun nightie

is (informal) a woman's nightgown or nightdress; a dress-like garment worn to bed.

As a letter x is

the twenty-fourth letter of the.

As a symbol x is

voiceless velar fricative.

As a verb waive

is (obsolete) to outlaw (someone) or waive can be (obsolete) to move from side to side; to sway.

As a noun waive

is (obsolete|legal) a woman put out of the protection of the law; an outlawed woman or waive can be .

As a letter x is

the twenty-fourth letter of the.

As a symbol x is

voiceless velar fricative.

As adjectives the difference between imperceptible and unobservable

is that imperceptible is not perceptible, not detectable, too small in magnitude to be observed while unobservable is that cannot be observed.

As a noun unobservable is

something that cannot be observed.

As adjectives the difference between christmassy and false

is that christmassy is resembling or having feelings of christmas while false is (label) one of two states of a boolean variable; logic.

As nouns the difference between word and board

is that word is scripture; the bible while board is a relatively long, wide and thin piece of any material, usually wood or similar, often for use in construction or furniture-making or board can be (basketball|informal) a rebound.

As a verb board is

to step or climb onto or otherwise enter a ship, aircraft, train or other conveyance.

As verbs the difference between entranced and captivate

is that entranced is (entrance) while captivate is to attract and hold interest and attention of; charm.

As an adjective entranced

is held at attention, as if by magic.

As a verb pinch

is to squeeze a small amount of a person's skin and flesh, making it hurt.

As a noun pinch

is the action of squeezing a small amount of a person's skin and flesh, making it hurt.

As a letter x is

the twenty-fourth letter of the.

As a symbol x is

voiceless velar fricative.

As a noun unknot

is (mathematics) in knot theory, a loop that is not knotted.

As a verb unknot

is to undo (a knot).

As an adjective false is

(label) one of two states of a boolean variable; logic.

As nouns the difference between actor and participator

is that actor is a person who performs in a theatrical play or film while participator is one who participates.