Adjective: sixtieth siks-tee-uth
- The ordinal number of sixty in counting order
- 60th
- Position 60 in a countable series of things
"They celebrated their sixtieth wedding anniversary"
- One part in sixty equal parts
"A minute is one-sixtieth of an hour";
- one-sixtieth
Derived forms: sixtieths
See also: ordinal
Type of: common fraction, rank, simple fraction, vulgar fraction [Brit]