reciprocate

As a letter s

is the letter s with a.

As a verb reciprocate is

to mutually give and take something; to interchange.

As an initialism gift

is (medicine) (gamete intrafallopian transfer).

As a verb reciprocate is

to mutually give and take something; to interchange.

In lang=en terms the difference between relitigate and reciprocate

is that relitigate is to dispute, debate, contest again while reciprocate is to counter, retort or retaliate.

As verbs the difference between relitigate and reciprocate

is that relitigate is (intransitive) to litigate again; to sue or pursue legal remedy a second or further time while reciprocate is to mutually give and take something; to interchange.

As a noun complement

is complement, thing added that makes a whole.

As a verb reciprocate is

to mutually give and take something; to interchange.

As a verb reciprocate

is to mutually give and take something; to interchange.

As an adjective undefined is

lacking a definition or value.

As verbs the difference between reciprocate and correspond

is that reciprocate is to mutually give and take something; to interchange while correspond is to be equivalent or similar in character, quantity, quality, origin, structure, function etc.

As verbs the difference between reciprocate and retribute

is that reciprocate is to mutually give and take something; to interchange while retribute is to pay back; to give in return, as payment, reward, or punishment; to requite.

As verbs the difference between reciprocate and neglect

is that reciprocate is to mutually give and take something; to interchange while neglect is (label) to fail to care for or attend to something.

As a noun neglect is

the act of neglecting.

As verbs the difference between reciprocate and agree

is that reciprocate is to mutually give and take something; to interchange while agree is .

In lang=en terms the difference between reciprocate and revenge

is that reciprocate is to counter, retort or retaliate while revenge is to take for (a particular harmful action), to avenge.

As verbs the difference between reciprocate and revenge

is that reciprocate is to mutually give and take something; to interchange while revenge is (reflexive) to take one's revenge (on'' or ''upon ) someone.

As a noun revenge is

any form of personal retaliatory action against an individual, institution, or group for some perceived harm or injustice.