Dominant vs. predominant: What's the difference?

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​Language can be tricky, especially when words sound similar but have different meanings. Take "dominant" and "predominant", for example. They both suggest something is important, but how do you know which one to use? Let’s break it down.​

 

Dominant: The leader of the pack

When we talk about something being "dominant", we’re talking about the leader, the one in charge, the thing that stands out the most. Whether it’s a dominant species in an ecosystem or a dominant colour in a painting, this word is all about being the most powerful or noticeable. For example:

In my family, Mum is the dominant decision-maker.
(It’s not up for debate―what Mum says, goes.)

The dominant smell in the kitchen right now is burnt toast.
(It’s taken over everything, and you can forget about hiding your cooking mishap.)

The dominant cat in the household always gets the best spot on the couch.
(​​And by best spot, I mean the exact centre, while you’re left balancing on the edge, questioning your life choices.)
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Predominant: The majority vote

Now, "predominant" is a bit different. It’s less about power and more about prevalence. Predominant refers to what’s most common or widespread. For instance:

The predominant flavour in this dish is garlic.
(You may not be able to taste much else, but garlic lovers won’t complain.)

The predominant feature of my workspace is the ever-growing to-do list.
(It’s like a game of Jenga, except the tower just keeps getting taller.)

When grocery shopping, the predominant experience is the constant battle between "I just need one more thing" and "how did my total get so high?"
​(​It’s a weekly adventure in unintended shopping where the snacks are always calling your name.)

Choosing the right word

So, when do you use "dominant", and when do you opt for "predominant"? Here’s a simple guide:
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• Use dominant when you’re referring to something that’s clearly in control or has the most influence.
• Use predominant when you’re talking about something that’s more common or widespread but not necessarily in charge.

Whilst "dominant" and "predominant" might seem interchangeable, they serve different purposes. "Dominant" is all about being the top dog, while "predominant" is about being in the majority. So, whether you’re discussing the dominant force in a boardroom or the predominant food group in your diet (hello, carbs), you’re now equipped to choose the right word with confidence. Drop a comment below to share your fun examples of using "dominant" and "predominant" in sentences!


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Author
Stella Logan is an freelance Australian proofreader and copyeditor who can help you choose the right words―whether it's to describe your dominant coffee habit or the predominant noise of your neighbour's kids.

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