3 : SPACE SHUTTLE
2shuttle verb shut·tled; shut·tling : to move back and forth frequently
shut·tle·cock noun : a light conical object (as of cork or plastic) used in badminton
shut up verb : to cease or cause to cease talking
Synonyms
clam up, hush, quiet; also calm (down), cool (down), settle (down); haw, hem
Antonyms
speak, talk
1shy adjective shi·er or shy·er ; shi·est or shy·est 1 : easily frightened : TIMID
2 : WARY
3 : sensitively diffident or retiring : BASHFUL
4 : having less than the full or specified amount or number : LACKING
— shy·ly adverb
— shy·ness noun
Synonyms
[1] fainthearted, fearful, mousy, scary, skittish, timid; also chicken, chickenhearted, cowardly, craven, dastardly, jittery, jumpy, pusillanimous, spineless, unheroic, yellow; anxious, apprehensive, nervous; afraid, alarmed, horrified, panicked, panicky, scared, shocked, spooked, startled, terrified, terrorized
Antonyms
adventuresome, adventurous, audacious, bold, daring, dashing, gutsy, hardy, venturous, venturesome
[3] bashful, coy, demure, diffident, introverted, modest, retiring, sheepish; also antisocial, unsociable; awkward, embarrassed, self-conscious, unadventurous, unassertive, unenterprising; inhibited, reserved, uneasy, uptight
Antonyms
extroverted, immodest, outgoing
[4] deficient, inadequate, insufficient, scarce, short, wanting—more at SHORT
2shy verb shied; shy·ing 1 : to show a dislike : RECOIL
2 : to start suddenly aside through fright shy·ster noun : an unscrupulous lawyer or politician
Si symbol silicon
SI abbreviation [ORIGIN: F Système International d'Unités]
International System of Units
Si·a·mese noun, plural Sia·mese : THAI
— Siamese adjective
Siamese cat noun : any of a breed of slender blue-eyed short-haired domestic cats of Asian origin
Siamese twin noun [ORIGIN: fr. Chang †1874 and Eng †1874 twins born in Siam with bodies united]
: one of a pair of twins with bodies joined together at birth
Siberian husky noun : any of a breed of thick-coated compact dogs orig. developed in Siberia to pull sleds
1sibilant adjective : having, containing, or producing the sound of or a sound resembling that of the s or the sh in sash
— sib·i·lant·ly adverb
2sibilant noun : a sibilant speech sound as English \s\, \z\, \sh\, \zh\, \ch (=tsh)\, or \j (=dzh)\)
sib·ling noun : a brother or sister considered irrespective of sex; also : one of two or more offspring having one common parent
sib·yl noun, often cap : PROPHETESS
— sib·yl·line adjective
sic adverb : intentionally so written — used after a printed word or passage to indicate that it exactly reproduces an original sick adjective 1 : not in good health : ILL; also : of, relating to, or intended for use in sickness <~ pay>
2 : suffering from nausea : NAUSEATED
3 : having a strong distaste from an overabundance; also : DISGUSTED
4 : PINING
5 : MACABRE, SADISTIC <~ jokes>
Synonyms
[1] bad, down, ill, indisposed, peaked, punk, unhealthy, unsound, unwell; also nauseated, nauseous, qualmish, queasy, squeamish; airsick, carsick, seasick, dizzy, woozy; achy, feverish; diseased, disordered; feeble, frail, infirm, sickly, weak, weakly; afflicted, troubled; challenged, crippled, debilitated, disabled, incapacitated, lame
Antonyms
chipper, hale, healthful, healthy, sound, well, whole, wholesome
[2] ill, nauseated, nauseous, queasy, queer, squeamish—more at NAUSEOUS
[3] fed up, jaded, tired, weary—more at WEARY
[3] disgusted, squeamish; also angry, displeased, mad, upset
sick·bed noun : a bed on which one lies sick
sick·en verb :