Meanings

gradual decrease

gradual increase

communications (e.g. post, telegraph)

relay

forwarding

delivery of packages

successively

step-down transformer

frequency multiplier

multiplier (e.g. frequency)

multiplication (e.g. of frequencies)

Ministry of Communications and Transportation (dissolved in 1949)

law of diminishing returns

law of diminishing marginal utility

law of diminishing marginal product

post office

Minister of Communications and Transportation (1885-1949)

diminishing returns