сухарь

Noun

 * 1)  rusk a piece or slice of bread, dried or toasted until hard and crisp
 * 2)  biscuit, hardtack, cracker, crouton, crispbread a piece of any dry bread-like food
 * 3)  a dried-up man, a dry old stick a very thin person
 * 4)  a heartless, uncaring, emotionless person
 * 5)  cotter a metal wedge or pin used to hold parts of a machine together