IOU

n (infml 口) (abbr of I owe you I owe you的缩写) signed paper acknowledging that one owes the sum of money stated 借据; 欠条: give sb an IOU for 20 给某人开具借款20英镑的字据.

involved, involvement, involvement in, invulnerability, invulnerable, inward, inward (also inwards), inward(s), inwardly, inwardness, inwards, iodine, iodize, iodise, IOM, ion, Ionic, ionization, ionisation, ionize, ionise, ionosphere, iota, IOW, Iowa, IPA, ipso facto, IQ, ir-, IRA, Iran, Iraq, irascibility, irascible, irascibly, irate, irately, IRBM, ire, Ireland, iridescence, iridescent, iridium,