ld vs LSD, What's the Difference?

Which to use

“ld” and “LSD” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#40,065
“ld” frequency rank: #21,684
“LSD” frequency rank: 61749
confusion score

Side-by-Side Comparison

Feature	ld	LSD
Definition	Mathematik: Schreibweise für den Zweierlogarithmus, den Logarithmus zur Basis 2, Kurzform für log₂	Lysergsäurediethylamid (eine psychedelische Droge)

Where the spellings diverge

Shared letters are muted; the letters that actually set ld and LSD apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

2 ch

3 ch

LSD

Spelling & Dictionary Insight

ld and LSD are indexed as a confusable German pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 61749, derived from the frequency rank of both members and their visual similarity.

ld is recorded at frequency rank #40,065, classified as anabbrev. LSD is at rank #21,684, tagged as anabbrev, pronounced [ɛlʔɛsˈdeː].

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 61749, this pair ranks #738,110 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ld vs LSD

Shared letters: dl. Private to "ld": -. Private to "LSD": s.

"ld" · 2 letters · shape CC · "LSD" · 3 letters · shape CCC

Frequency comparison

ld#40,065

LSD#21,684

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "ld" and "LSD" be used interchangeably?

No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.

Which is more common, "ld" or "LSD"?

"LSD" is the more common of the two: it sits at frequency rank #21,684 in our German list, against #40,065 for "ld". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering ld vs LSD

The fastest way to pick the right one every time.

Read both glosses above and match the meaning you intend, only context separates this pair.
See each word in full, definition, IPA, etymology and its other confusables. Full “ld” entry
Browse more pairs most likely to be confused. Most confusable