trendline

American

[trend-lahyn] / ˈtrɛndˌlaɪn /

Or trend line

noun

an upward or downward line on a chart indicating movements of average prices, as of stocks, over a period of time.

Etymology

Origin of trendline

1910–15 for more general sense; trend + line ¹

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

trendline

A decisive breakdown would be a bearish catalyst supporting a deeper correction in the months ahead, targeting long-term trendline support near $264.

From Barron's ● Apr. 10, 2026

Newton said DBA has just surpassed a key technical resistance level, after breaking out of a trendline in early February.

From MarketWatch ● Mar. 6, 2026

The clearest way to see when a trend is about to change directions is when a trendline breaks.

From MarketWatch ● Feb. 18, 2026

That’s a notable development, given that the stock has struggled to stay above this secular trendline over the past three years.

From Barron's ● Jan. 27, 2026

The key level to watch is $65.50/bbl, near the top of the daily Ichimoku cloud and the declining trendline connecting the highs from July and September in 2025.

From The Wall Street Journal ● Jan. 13, 2026

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023