twelveish

As nouns the difference between terms and twelveish

is that terms is while twelveish is (colloquial) any time close to twelve o'clock.

As nouns the difference between taxonomy and twelveish

is that taxonomy is the science or the technique used to make a classification while twelveish is (colloquial) any time close to twelve o'clock.

As nouns the difference between twelve and twelveish

is that twelve is a group of twelve items while twelveish is (colloquial) any time close to twelve o'clock.

As a numeral twelve

is the cardinal number occurring after eleven and before thirteen, represented in arabic numerals as 12 and in roman numerals as xii.

Noonish is a synonym of twelveish.

In colloquial terms the difference between twelveish and noonish

is that twelveish is any time close to twelve o'clock while noonish is any time close to noon; midday or thereabouts.