Word Pronunciation & Dictionary

upper boundary

Word Rarity Uncommon

Frequency: Zipf frequency 4.03 in modern English

Syllables: up-per bound-ary
IPA

23

Scrabble Score

13

Letters

3

Syllables

10

Unique Chars

Meaning

noun

The most ancient time encompassed by a given period of time.

noun

The most recent time encompassed by a given geological period.

Inflected Forms

upper boundaries (plural)

Phrases

lower boundary

Frequently Paired Words

lower boundary

Questions

What does upper boundary mean?: The most ancient time encompassed by a given period of time.

How to pronounce upper boundary

Open the pronunciation page — Open the Speakur entry for “upper boundary”.
Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
Play the audio — Click Play to hear reference audio for “upper boundary”.
Repeat and practice — Say “upper boundary” aloud, matching stress and vowels until it feels natural.