Read along with the three podcasts, or open the full dictionary entry for Substantially for the definition, Arabic meaning, synonyms and example sentences.
Narrator: Today's word is substantially. It's an adverb, and it adds weight, meaning to a large and significant degree.
Narrator: You say it sub-STAN-shuh-lee, with the stress on the second syllable. In phonetic notation, that's /səbˈstænʃəli/.
Narrator: Substantially means to a great or significant extent, as in profits rose substantially. It can also mean essentially, or for the most part.
Narrator: It comes from substance and the Latin substantia, that underlying essence, so something substantial has real weight and solidity.
Narrator: From that root, substantially grew to describe big, meaningful change, not a tiny tweak but a serious, weighty difference.
Narrator: It has a second, quieter sense too: the two reports are substantially the same, meaning in essence, in all the ways that matter.
Narrator: In tone, substantially is formal and confident, common in business and writing. So remember: substantially means by a lot, in a way that truly counts.
Speaker A: Sales were up substantially this quarter, nearly forty percent higher.
Speaker B: That's brilliant. Substantially is the right word there, it really was a big jump.
Speaker A: Exactly. And the plan is substantially the same as last year, just a few tweaks.
Speaker B: Right. That's the other sense, substantially meaning essentially, for the most part.
Speaker A: Good point. One thing, don't use substantially for tiny changes. It means by a large amount.
Speaker B: Exactly. You wouldn't say prices rose substantially if they went up by a penny.
Speaker A: True. A close word is significantly, very similar, though substantially leans a touch more solid and weighty.
Speaker B: Yes. So the new road cut the journey substantially, a good half hour.
Speaker A: Perfect. And the two designs are substantially identical.
Speaker B: Lovely. One word, by a lot, or in essence.
Speaker B: Today we'll use the word substantially to write AI prompts about big improvements, major changes, and significant optimisation.
Speaker B: Picture a slow page. Here's a clean prompt.
Prompt: Optimise this React page so it loads substantially faster: lazy-load images, split the bundle, and cache data, aiming to cut the load time by at least half on a slow connection.
Speaker B: It works because substantially tells the AI we want a big, measurable speed gain, not a tiny tweak.
Speaker A: Nice. Could substantially guide a redesign too?
Speaker B: Absolutely. Try this.
Prompt: Redesign this dashboard so it is substantially clearer: bigger key numbers, fewer colours, and a clean grid, so a busy manager grasps the whole picture in a single glance.
Speaker B: Here substantially clearer sets a high bar, telling the AI to make a serious, noticeable improvement.
Speaker A: Clear. What about a database?
Speaker B: Use the significant sense.
Prompt: Add indexes so this slow report query runs substantially faster, and explain which index helps most, so the team understands why the speed improved so dramatically.
Speaker B: Saying substantially faster tells the AI to target a major performance win, with a clear reason.
Speaker A: Love that. Can we build a small app?
Speaker B: Minimal but precise.
Prompt: Create a simple onboarding flow that substantially cuts signup steps: combine the form into one short screen with smart defaults, so new users finish in under a minute.
Speaker B: One word, substantially, sets the ambition of the whole task, so the prompt stays memorable.
Speaker A: And for accessibility?
Speaker B: Same big-improvement idea.
Prompt: Improve this form substantially for accessibility: add labels, focus states, and clear error text, so it works smoothly for keyboard and screen-reader users alike.
Speaker B: The word substantially pushes the AI to make a real, thorough accessibility upgrade.
Speaker A: Brilliant. One last quick prompt for code quality?
Speaker B: Here you go.
Prompt: Refactor this large component so it is substantially simpler: split it into smaller pieces, remove duplication, and name things clearly, while keeping the behaviour exactly the same.
Speaker B: So the rule is simple: use substantially when you want a big, meaningful improvement, and the AI aims high.
Speaker A: Got it. Substantially equals by a lot, in a way that counts. Easy to recall and easy to type.
Substantially — meaning in Arabic & definition More S courses GL Dictionary