As adjectives the difference between hardhearted and implacable

is that hardhearted is lacking in compassion; cold and pitiless while implacable is unplaceable; that cannot be put or placed.

As a noun million

is a million, 10⁶.

As numerals the difference between million and centillion

is that million is the cardinal number 1,000,000: 10⁶ while centillion is (short scale) 10³⁰³.

As nouns the difference between football and knife

is that football is a sport played on foot in which teams attempt to get a ball into a goal or zone defended by the other team while knife is a utensil or a tool designed for cutting, consisting of a flat piece of hard material, usually steel or other metal (the blade), usually sharpened on one edge, attached to a handle. The blade may be pointed for piercing.

As a verb knife is

to cut with a knife.

In intransitive terms the difference between bound and cruise

is that bound is to leap, move by jumping while cruise is to travel at constant speed for maximum operating efficiency.

In transitive terms the difference between bound and cruise

is that bound is to cause to leap while cruise is to move about an area leisurely in the hope of discovering something, or looking for custom.

As verbs the difference between bound and cruise

is that bound is past tense of bind while cruise is to sail about, especially for pleasure.

As nouns the difference between bound and cruise

is that bound is a boundary, the border which one must cross in order to enter or leave a territory while cruise is a sea or lake voyage, especially one taken for pleasure.

As an adjective bound

is obliged (to).

As a proper noun Cruise is

{{surname|from=Anglo-Norman|}.

As nouns the difference between xylophone and metallophone

is that xylophone is a musical instrument made of wooden slats graduated so as to make the sounds of the scale when struck with a small drumstick-like hammer while metallophone is any musical instrument consisting of tuned metal bars which are struck to make sound.

As verbs the difference between degrade and deteriorated

is that degrade is while deteriorated is (deteriorate).

As adjectives the difference between crenulated and wavy

is that crenulated is having indented, square notched battlements or crenelations while wavy is rising or swelling in waves.

As a noun wavy is

alternative form of lang=en goose.

As nouns the difference between crenulations and wavy

is that crenulations is plural of lang=en while wavy is alternative form of lang=en goose.

As an adjective wavy is

rising or swelling in waves.

As nouns the difference between voucher and chek

is that voucher is a piece of paper that entitles the holder to a discount, or that can be exchanged for goods and services while chek is (hong kong foot).

As a verb voucher

is to establish the authenticity of; to vouch for.