RF
UHF, VHF, audio frequency, carrier frequency, cycles, extremely high frequency, frequency, frequency spectrum, hertz, high frequency, intermediate frequency, kilocycles, kilohertz, low frequency, lower frequencies,
deliver over - circulate, come across, deliver, distribute, fork over, forward, give in, give out, give over, hand, hand in, hand out, hand over, pass, pass out,
preventive measure - foresight, forethought, insurance, measure, precaution, protection, providence, provision, safeguard, steps ,
impetus - acceleration, activity, animation, ardour, brio, briskness, catalyst, clout, compulsion, drive, driving force, encouragement, energy, enthusiasm, getaway,
recollecting - flashback, hindsight, memoir, recall, recollection, reconsideration, reflection, remembrance, reminiscence, retrospect, retrospection, review, rote, study ,
duplex telegraphy - Teletype, code, electricity, key, news ticker, receiver, sounder, telegraphy, telex, ticker, transmitter, wire service ,
galvanic pile - device, generator, parts, relay ,
promise - accede, accord, actuarial prediction, adumbration, afford hope, agree, agree to, agreement, apocalypse, arrangement, aspiration, assent, assumption, assurance, assure,
christen - anoint, baptise, bring up, broach, call, define, denominate, designate, dip, dub, entitle, establish, float, found, identify,
clan - animal kingdom, ashram, band, blood, body, bracket, branch, brand, breed, brood, brotherhood, bunch, cabal, cadre, camp,
measles - German measles, acute articular rheumatism, ague, alkali disease, anthrax, bacillary dysentery, bastard measles, black death, black fever, brucellosis, bubonic plague, cerebral rheumatism, chicken pox, cholera, cowpox,
preventive measure - foresight, forethought, insurance, measure, precaution, protection, providence, provision, safeguard, steps ,
impetus - acceleration, activity, animation, ardour, brio, briskness, catalyst, clout, compulsion, drive, driving force, encouragement, energy, enthusiasm, getaway,
recollecting - flashback, hindsight, memoir, recall, recollection, reconsideration, reflection, remembrance, reminiscence, retrospect, retrospection, review, rote, study ,
duplex telegraphy - Teletype, code, electricity, key, news ticker, receiver, sounder, telegraphy, telex, ticker, transmitter, wire service ,
galvanic pile - device, generator, parts, relay ,
promise - accede, accord, actuarial prediction, adumbration, afford hope, agree, agree to, agreement, apocalypse, arrangement, aspiration, assent, assumption, assurance, assure,
christen - anoint, baptise, bring up, broach, call, define, denominate, designate, dip, dub, entitle, establish, float, found, identify,
clan - animal kingdom, ashram, band, blood, body, bracket, branch, brand, breed, brood, brotherhood, bunch, cabal, cadre, camp,
measles - German measles, acute articular rheumatism, ague, alkali disease, anthrax, bacillary dysentery, bastard measles, black death, black fever, brucellosis, bubonic plague, cerebral rheumatism, chicken pox, cholera, cowpox,