selecting, a. elective, eclectic.

selection, n. choice, election, preference, pick; collection, assortment.  Antonyms:  promiscuity, indiscrimination.

self, n. ego, person, individual.  Associated Words:  egoism, egoist, egoistic, egotism, egotist, egotistical.

self-abasement, n. self-degradation, humility, meekness.

self-abuse, n. masturbation, onanism, secret vice, self-pollution.

self-acting, a. automatic.

self-conceit, n. egotism, overweening, priggishness, vanity.

self-conceited, a. egotistical, vain, overweening, priggish, opinionated, bumptious, conceited.

self-consumption, n. autophagy.

self-defense, n.  Associated Word::  jujutsu.

self-deification, n. autotheism.

self-denial, n. self-abnegation, asceticism, self-sacrifice, abstemiousness.  Antonyms:  self-indulgence, sensuality, voluptuousness.

self-denying, a. self-sacrificing, unselfish, ascetic, abstemious.

self-evident, a. axiomatic, obvious.

self-examination, n. introspection; autoscopy.

self-explanatory, a. obvious.

self-fear, n. self-distrust, autophoby.

self-fertilization, n. autogamy.

self-government, n. self-control; democracy; autonomy.  Antonyms:  subjection, heteronomy, abandon, subordination.

self-heating, a. idiothermic.

self-importance, n. pompousness, pomposity, vanity, conceit.

self-important, a. pompous, vain, opinionated, bumptious.

selfish, a. ungenerous, narrow, illiberal, uncharitable.

self-knowledge, n. autology.

self-murderer, n. suicide, felo-de-se.

self-possessed, a. composed, unruffled, sedate, calm, collected.

self-possession, n. composure, equanimity, calmness, aplomb.  Antonyms:  discomposure, agitation.

self-righteous, a. pharisaic, sanctimonious.

self-sufficiency, n. self-complacency.

self-taught person. autodidact, automath.

self-worship, n. autolatry, idiolatry.

sell, v. vend, barter, exchange; betray; (Slang) deceive, impose upon, cheat.

sell, n. (Slang) imposition, cheat, hoax, deception, trick, fraud.

seller, n. vender, vendor.

selling, n. vendition, barter, vending, sale.

selvedge, n. listing.

semen, n. sperm, seed.  Associated Words:  seminal, spermatic, spermatism, gonic, aspermatism, aspermia, seminific, seminiferous, spermatoid, spermatozoid, spermic, spermary, spermatorrhea, spermatozoa, emission, vesiculae seminales, fecundate.

semicircle, n. hemicycle.

send, v. dispatch, commission, delegate; transmit, forward.

send back. return, remand, recommit.

sending back. return, remand, remandment, recommitment.

senile, a. decrepit, feeble, aged, infirm.