Word Pronunciation & Dictionary

round-trip light time

Word Rarity Uncommon

Frequency: Zipf frequency 4.60 in modern English

Syllables: round-trip -light -time
IPA

27

Scrabble Score

18

Letters

4

Syllables

13

Unique Chars

Meaning

noun

The amount of time required for an electromagnetic signal to travel from Earth to a spacecraft or another celestial body within the Solar System and then return.

Countable; Uncountable

Usage

Inflected Forms

round-trip light times (plural)

Synonyms

rtlt

Questions

What does round-trip light time mean?: The amount of time required for an electromagnetic signal to travel from Earth to a spacecraft or another celestial body within the Solar System and then return.

How to pronounce round-trip light time

Open the pronunciation page — Open the Speakur entry for “round-trip light time”.
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 “round-trip light time”.
Repeat and practice — Say “round-trip light time” aloud, matching stress and vowels until it feels natural.