This is the 675th most frequent Hebrew word.
המחיר
The price.
Here, 'המחיר' (the price) is used as the subject of the sentence, referring to the monetary cost.
המחיר של המוצר בחנות זו גבוה מאוד.
The price of the product in this store is very high.
In this sentence, 'המחיר' is the object of the verb 'להוריד' (to lower), referring specifically to the cost.
כדי להוריד את המחיר, יש לקנות בכמויות גדולות.
To lower the price, one must buy in large quantities.
This use of 'המחיר' again indicates 'the price' but highlights what is or is not encompassed within it.