last vs LSU, What's the Difference?

Which to use

“last” is an adjective and “LSU” is a name - they look or sound alike but fill different roles in a sentence.

#141
“last” frequency rank: #14,990
“LSU” frequency rank: 15131
confusion score

Side-by-Side Comparison

Feature	last	LSU
Definition	Final, ultimate, coming after all others of its kind.	Initialism of Louisiana State University.

Letter map: last vs LSU

Shared letters muted; letters that set last and LSU apart highlighted. Shared run: 2.

4 ch

last

3 ch

LSU

Role in the sentence - last and LSU

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: last is anadjective and LSUaname. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 15131, derived from the frequency rank of both members and their visual similarity.

last is recorded at frequency rank #141, classified as anadj, pronounced /lɑːst/. LSU is at rank #14,990, 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 15131, this pair ranks #465,864 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of last vs LSU

Shared letters: ls. Private to "last": at. Private to "LSU": u.

"last" · 4 letters · shape CVCC · "LSU" · 3 letters · shape CCV

Known mistypes of this pair

last ← alst · lasst · lastt · lats · llast

Frequently Asked Questions

Can "last" and "LSU" be used interchangeably?

No - they are not even the same part of speech. "last" is an adjective and "LSU" a name, so a sentence built for one is usually ungrammatical with the other.

In ordinary English text, does "last" or "LSU" show up more?

"last" is the more common of the two: it sits at frequency rank #141 in our English list, against #14,990 for "LSU". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

You've compared "last" and "LSU". Here's where to go from here.

Full dictionary entry for "last" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "LSU" - compare definitions side by side with the headword page. Word entry
This pair ranks #465,864 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"last" and "LSU" also get mixed up with nearby pairs, the highest-scored neighbour is "LSC vs LSU". 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 #465,864 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.