zavszuWhat's the difference?

Quick tell: za is a noun, zu is a preposition, so they fill different roles in a sentence.

Which to use

“za” is a noun and “zu” is a preposition - they look or sound alike but fill different roles in a sentence.

#27,140
“za” frequency rank
#9
“zu” frequency rank
27149
confusion score

Side-by-Side Comparison

Feature za zu
Definition Pizza in Richtung auf

Where the eye mixes za and zu

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

2 ch
za
2 ch
zu

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: za is [zɑː] while zu is [t͡suː]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - a in “za” becomes u in “zu”, and the parts of speech differ too (noun vs preposition), which is usually the fastest check. Our composite confusion score for this pair is 27149, derived from the frequency rank of both members and their visual similarity.

za is recorded at frequency rank #27,140, classified as anoun, pronounced [zɑː]. zu is at rank #9, tagged as aprep, pronounced [t͡suː].

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 27149, this pair ranks #1,806,529 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of za vs zu

Shared letters: z. Private to "za": a. Private to "zu": u.

"za" · 2 letters · shape CV  ·  "zu" · 2 letters · shape CV

Frequently Asked Questions

Can "za" and "zu" be used interchangeably?
No - they are not even the same part of speech. "za" is a noun and "zu" a preposition, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "za" or "zu"?
"zu" is the more common of the two: it sits at frequency rank #9 in our German list, against #27,140 for "za". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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

Source: FrequencyWords open word-frequency list