Words ended with "s"

[mochaichai]

Risks
Crisps
Lists
Grasps

These words are all ended with two "s" (should it be two "s's"??). How to pronounce the last syllable? Should we pronounced these words with two consecutive "s-s" sounds at the end or just one "s" sound is suffice?

Is there a general rule for this type of words?

[Casiopea]

They end in sCs (C stands for consonant). The consonants /k, p, t/ are voiceless, so /s/ is pronounced [s], voiceless. Pronounce Cs together, like this,

ris[ks]
cris[ps]
lis[ts]
gras[ps]

All the best.

[BobK]

Originally Posted by mochaichai

Risks
Crisps
Lists
Grasps

These words are all ended with two "s" (should it be two "s's"??). How to pronounce the last syllable? Should we pronounced these words with two consecutive "s-s" sounds at the end or just one "s" sound is suffice?

Is there a general rule for this type of words?

A footnote to Casi's answer. There isn't a 'last syllable' (unless by that you mean 'the first syllable'); they are all monosyllables. If you try to pronounce the final s as a separate syllable, your pronunciation will be wrong.

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