by

As an adverb whereby

is (interrogative|obsolete) by what, in which direction; how.

As a noun by is

bee (insect).

As a verb by is

.

As nouns the difference between by and bayou

is that by is bee (insect) while bayou is a slow-moving, often stagnant creek or river.

As a verb by

is .

As nouns the difference between hello and by

is that hello is "!" or an equivalent greeting while by is bee (insect).

As verbs the difference between hello and by

is that hello is to greet with "hello" while by is .

As an interjection hello

is .

As nouns the difference between by and adjacent

is that by is bee (insect) while adjacent is something that lies next to something else, especially the side of a right triangle that is neither the hypotenuse nor the opposite.

As a verb by

is .

As an adjective adjacent is

lying next to, close, or contiguous; neighboring; bordering on.

As a preposition adjacent is

(us) next to; adjacent to; beside.

As verbs the difference between adopted and by

is that adopted is (adopt) while by is .

As a noun by is

bee (insect).

As nouns the difference between car and by

is that car is friend while by is bee (insect).

As verbs the difference between car and by

is that car is (lb) while by is .

As verbs the difference between past and by

is that past is while by is .

As a noun by is

bee (insect).

As verbs the difference between close and by

is that close is (label) to remove a gap while by is .

As nouns the difference between close and by

is that close is an end or conclusion or close can be an enclosed field while by is bee (insect).

As an adjective close

is closed, shut.