What context can I use each word in?
Learn when and how to use these words with these examples!
longitudinal
Example
The longitudinal axis of the ship runs from bow to stern. [longitudinal: adjective]
Example
The researchers conducted a longitudinal study to track the development of the disease over several years. [longitudinal: adjective]
Example
Sound waves are longitudinal waves that travel through a medium by compressing and expanding it. [longitudinal: adjective]
lengthwise
Example
Cut the carrot lengthwise into thin strips. [lengthwise: adverb]
Example
The board needs to be sawed lengthwise to fit the space. [lengthwise: adverb]
Example
Measure the table lengthwise to see if it will fit in the room. [lengthwise: adverb]
Good things to know
Which word is more common?
Lengthwise is more commonly used than longitudinal in everyday language, while longitudinal is more commonly used in technical or scientific contexts.
What’s the difference in the tone of formality between longitudinal and lengthwise?
Longitudinal is more formal than lengthwise, and is typically used in academic or technical writing.