Cell division - meiosis
Terminology is what is holding you back. 
What chromosome implies depends on context, i.e. is it replicated or not.

In Meiosis. Gametes arise from Germline cells that have 23 PAIRS of chromosomes. That means, that while there are 23 different chromosomes they come in doubles/pairs. This is the typical X like shape we think about when we hear chromosomes.
Another way, chromosome can means either 1X or 2 single chromatid 

MEIOSIS I -- 23X chromosome pairs are duplicate and end up as 46X chromosome pairs (46 pairs of X OR, 92 separate chromatid)

These 46X are divided equally among two daughter cells just like in mitosis. Where now each daughter cell receives 23X = 23 pairs. 

MEIOSIS II. The daughter cells in end of Meiosis I divide without DNA replication and the 23 pairs are split among 2 new cells. So now each new daughter cell (in total 4) has 23 individual chromatid (individual chromosomes)
and these are the gametes.

When the gametes fertilize to form a zygote, the zugote product ends up 24X each.

Each X contains, 1 chromatid (|) from the father and 1 chromatid {|} from the mother. 

Haploid means once copy of each chromosome. 
23
Diploid means two copies chromosomes or 23X

Ref
- Allison Q.N,.(2015), Freeman Biological Science.