gramvsGRUTell them apart

Quick tell: gram is a noun, GRU is a name, so they fill different roles in a sentence.

Which to use

“gram” is a noun and “GRU” is a name - they look or sound alike but fill different roles in a sentence.

#10,219
“gram” frequency rank
#39,340
“GRU” frequency rank
49559
confusion score

Side-by-Side Comparison

Feature gram GRU
Definition A unit of mass equal to one-thousandth of a kilogram. Symbol: g. The Main Intelligence Directorate — the Soviet and then the Russian military intelligence agency.

Letter map: gram vs GRU

Shared letters muted; letters that set gram and GRU apart highlighted. Shared run: 2. gram runs 4 letters (CCVC) against GRU's 3 (CCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
gram
3 ch
GRU

Role in the sentence - gram and GRU

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: gram is anoun and GRUaname. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 49559, derived from the frequency rank of both members and their visual similarity.

gram is recorded at frequency rank #10,219, classified as anoun, pronounced /ˈɡɹæm/. GRU is at rank #39,340, tagged as aname.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 49559, this pair ranks #182,463 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of gram vs GRU

Shared letters: gr. Private to "gram": am. Private to "GRU": u.

"gram" · 4 letters · shape CCVC  ·  "GRU" · 3 letters · shape CCV

Known mistypes of this pair

  • gram ← garm · ggram · gramm · grma · grram · rgam

Frequently Asked Questions

Is swapping "gram" for "GRU" ever safe?
No - they are not even the same part of speech. "gram" is a noun and "GRU" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "gram" or "GRU"?
"gram" is the more common of the two: it sits at frequency rank #10,219 in our English list, against #39,340 for "GRU". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "gram" and "GRU".

  • Full dictionary entry for "gram" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "GRU" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #182,463 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "gram" and "GRU" also get mixed up with nearby pairs, the highest-scored neighbour is "Gere vs GRU". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #182,463 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list