お札[osatsu] bill
ドル札[dorusatsu] dollar bill
一円札[ichiensatsu] one-yen bill
一札[issatsu] document
下げ札[sagefuda] tag

花札[hanafuda] floral playing cards
荷札[nifuda] label
改札[kaisatsu] examination of tickets
改札口[kaisatsuguchi] ticket barrier (gate)
改札鋏[kaisatsuhasami] ticket punch

いとも簡単に[itomokantanni] very easily
一了簡[ichiryoukan] at one's discretion
簡易[kani] simplicity
簡易化[kanika] simplification
簡潔[kanketsu] brevity

簡素[kanso] simplicity
簡素化[kansoka] simplification
簡体字[kantaiji] simplified Chinese character
簡短[kantan] simple
簡単に言うと[kantanniiuto] simply put