Are you ever stuck for a word, or a word with the same meaning as some other word? … you need a dictionary, or a thesaurus.
If you are on a Mac laptop, try the desktop application Dictionary, as shown here in this tutorial.
Often you need a dictionary in the “online” world, and like The Free Dictionary for its great online presence as a dictionary resource (+ Thesaurus, Acronyms and Abbreviations, Idioms, Encyclopedia, a Literature Reference Library (via the website)), and its ease of use for programmers.
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I like the single-row radio-play approach for keeping the controls compact while still making each selection clear. When Iβm checking a calculation alongside a tutorial, I use StepStat to see the intermediate steps; how do you handle the layout when the playlist gets much longer?