THESAURUS
Brother
Greek, abbacomes, abbot, acquaintance, adjunct, advocate, affiliate, ally, alter ego, analogon, analogue, ascetic, associate, aunt, auntie, backer, beadsman, bedfellow, belonger, best friend, blood brother, bosom friend, brethren, brother-in-arms, bub, bubba, bud, buddy, caloyer, card-carrier, card-carrying member, cardholder, casual acquaintance, catechumen, celibate, cenobite, charter member, chum, church member, churchman, churchwoman, close acquaintance, close copy, close friend, close match, clubber, clubman, clubwoman, coadjutor, cognate, cohort, colleague, committeeman, communicant, companion, compatriot, compeer, complement, comrade, confederate, confidant, confidante, confrere, congenator, congener, consociate, consort, conventioneer, conventioner, conventionist, conventual, conventual prior, coordinate, correlate, correlative, correspondent, counterpart, country cousin, cousin, cousin once removed, cousin twice removed, crony, daughter, dues-paying member, enlistee, enrollee, equivalent, familiar, father, favorer, fellow, fellow creature, fellow member, fellowman, first cousin, foster brother, frater, fraternity man, friar, friend, grand prior, grandnephew, grandniece, granduncle, great-aunt, great-uncle, guildsman, half brother, hermit, hieromonach, honorary member, image, initiate, inseparable friend, insider, intimate, joiner, kid brother, kin, kindred spirit, kinsman, laic, lay abbot, lay brother, lay sister, layman, laywoman, life member, like, likeness, lover, mate, member, mendicant, monastic, monk, mother, near duplicate, neighbor, nephew, niece, nuncle, nunks, nunky, obverse, one of us, other self, pal, palmer, parallel, parishioner, partisan, pendant, pickup, picture, pilgrim, pillar saint, pillarist, pledge, prior, reciprocal, relation, relative, religieux, religious, repository, second cousin, second self, secular, sibling, similitude, simulacrum, sis, sissy, sister, sister-german, sistern, socius, son, sorority girl, sorority woman, soul mate, stepbrother, stepsister, stylite, such, suchlike, supporter, sympathizer, tally, the like of, the likes of, twin, unc, uncle, uncs, uterine brother, well-wisher
ROGET THESAURUS
Brother
Consanguinity
N
consanguinity, relationship, kindred, blood, parentage, filiation, affiliation, lineage, agnation, connection, alliance, family connection, family tie, ties of blood, nepotism, kinsman, kinfolk, kith and kin, relation, relative, connection, sibling, sib, next of kin, uncle, aunt, nephew, niece, cousin, cousin- german, first cousin, second cousin, cousin once removed, cousin twice removed, ear relation, distant relation, brother, sister, one's own flesh and blood, family, fraternity, brotherhood, sisterhood, cousinhood, race, stock, generation, sept, stirps, side, strain, breed, clan, tribe, nation, related, akin, consanguineous, of the blood, family, allied, collateral, cognate, agnate, connate, kindred, affiliated, fraternal, intimately related, nearly related, closely related, remotely related, distantly related, allied, german.
Similarity
N
similarity, resemblance, likeness, similitude, semblance, affinity, approximation, parallelism, agreement, analogy, analogicalness, correspondence, homoiousia, parity, connaturalness, connaturality, brotherhood, family likeness, alliteration, rhyme, pun, repetition, sameness, uniformity, isogamy, analogue, the like, match, pendant, fellow companion, pair, mate, twin, double, counterpart, brother, sister, one's second self, alter ego, chip of the old block, par nobile fratrum, Arcades ambo, birds of a feather, et hoc genus omne, gens de meme famille, parallel, simile, type, image, photograph, close resemblance, striking resemblance, speaking resemblance, faithful likeness, faithful resemblance, similar, resembling, like, alike, twin, analogous, analogical, parallel, of a piece, such as, so, homoiousian, connatural, congener, allied to, akin to, approximate, much the same, near, close, something like, sort of, in the ballpark, such like, a show of, mock, pseudo, simulating, representing, exact, lifelike, faithful, true to nature, true to life, the very image, the very picture of, for all the world like, comme deux gouttes d'eau, as like as two peas in a pod, as like as it can stare, instar omnium, cast in the same mold, ridiculously like, as if, so to speak, as it were, as if it were, quasi, just as, veluti in speculum, et sic de similibus, tel maitre tel valet, tel pere tel fils, like master, like servant, like father, like son, the fruit doesn't fall far from the tree, a chip off the old block.
Equality
N
equality, parity, coextension, symmetry, balance, poise, evenness, monotony, level, equivalence, equipollence, equipoise, equilibrium, equiponderance, par, quits, a wash, not a pin to choose, distinction without a difference, six of one and half a dozen of the other, tweedle dee and tweedle dum, identity, similarity, equalization, equation, equilibration, co-ordination, adjustment, readjustment, drawn game, drawn battle, neck and neck race, tie, draw, standoff, dead heat, match, peer, compeer, equal, mate, fellow, brother, equivalent, equal, even, level, monotonous, coequal, symmetrical, coordinate, on a par with, on a level with, on a footing with, up to the mark, equiparant, equivalent, tantamount, indistinguishable, quits, homologous, synonymous, resolvable into, convertible, much at one, as broad as long, neither more nor less, much the same as, the same thing as, as good as, all one, all the same, equipollent, equiponderant, equiponderous, equibalanced, equalized, drawn, half and half, isochronal, isochronous isoperimetric, isoperimetrical, isobath, isobathic, equally, pari passu, ad eundum, caeteris paribus, in equilibrio, to all intents and purposes, it comes to the same thing, it amounts to the same thing, what is sauce for the goose is sauce for the gande.