Alƙalin wasan ya nuna kati.

Not only referee. Alƙali has a broader sense of judge, arbiter, or someone who decides a matter. In a sports context, it naturally means referee.

So in this sentence, alƙali is being used in the sports sense.

This is a very common Hausa pattern. When nouns are linked in an of relationship, Hausa often uses a longer form of the noun ending in -n or -r.

So:

• alƙali = referee / judge
• alƙalin = the referee / referee of ...
• wasa = game, play, match
• wasan = the game / the match

That is why Alƙalin wasan means the referee of the game/match.

A good way to think of it is that Hausa is packaging the idea the game’s referee into one noun phrase.

Wasa can mean play, game, or match, depending on context.

In this sentence, because we are talking about a referee and a card, wasa clearly means game or match.

So wasan here is best understood as the match or the game.

Because Hausa normally keeps a subject marker before the verb, even when the full subject noun is already stated.

So the structure is:

• Alƙalin wasan = the referee of the match
• ya = he / masculine singular completed-action marker
• nuna = showed
• kati = card

This means Hausa often says something like:

The referee, he showed a card.

That sounds unusual in English, but it is normal in Hausa grammar.

Because ya is the marker used for a third-person singular masculine subject in this kind of sentence.

Since alƙali is grammatically masculine, Hausa uses ya.

Compare:

• ya = he / masculine singular
• ta = she / feminine singular

So if the subject were a grammatically feminine noun, you would expect ta instead.

It is a little more than just he. In sentences like this, ya also helps show the tense/aspect pattern, especially a completed action.

So in practice, ya nuna is understood as something like:

• he showed
• he has shown

In a simple narrative sentence like this, English usually translates it as showed.

Nuna literally means show, point out, or indicate.

In a football or sports context, nuna kati means to show a card to a player. So it is the normal verb you would expect for a referee giving a yellow or red card.

If you wanted to be more specific, you could say things like:

• katin rawaya = yellow card
• katin ja = red card

Hausa does not use articles the same way English does. There is no separate word exactly like English a or the in front of nouns.

Instead, definiteness is often shown by:

• context
• noun form
• suffixes like -n or -r

Here, kati is just card. In English, we naturally say a card, but Hausa does not need a separate word for a.

So ya nuna kati is perfectly natural Hausa for he showed a card.

Yes. This is a very normal pattern.

The order is:

Subject + subject marker + verb + object

So:

• Alƙalin wasan = subject
• ya = subject marker
• nuna = verb
• kati = object

That makes the sentence very typical Hausa.

ƙ is not the same as ordinary k. It is a stronger, more forceful sound, often described as an ejective k.

A simple learner-friendly way to approach it is:

• say a k sound
• make it sharper and more popped than English k

So Alƙali is not quite the same as alkali with a normal k.

You do not need perfect pronunciation immediately, but it is worth noticing that Hausa treats k and ƙ as different sounds.

By itself, kati can mean card more generally. But in this sentence, the context makes it clearly a referee’s card in a match.

So the meaning comes from the whole sentence:

• referee
• match
• showed
• card

Together, these strongly point to a football-style yellow or red card situation.