四 Sì is 'four'.
And this time there are four characters, not three as usual.
四 is regarded as inauspicious (不吉利 bùjílì) as it sounds like 死 sǐ 'death'.
Add three drops of water and you still have sì, but this one is used in place names like 泗水 Sìshuǐ:
Now we have two look alikes:
1. This is mǐn 'dish':
Note that the two internal strokes don't bend and the bottom stroke sticks out on both sides.
2. And this is xuè 'blood':
Common word: 血液 xuèyè 'blood'
In form similar to 1. but with that extra stroke at the top; perhaps it's blood flowing out of a dish!