Now using kicad 5.0.0.
I placed a footprint associated with a through-hole resistor on my schematic named R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal.
I see that the suffix Horizontal means the resistor is to be placed horizontally on the board. I see that the D7.62mm is the distance between the centers of the holes corresponding to the resistor’s two leads.
What do the other numerals in this footprint’s name mean?
Thank you, Rene_Poschl. Now I understand.
I have updated my kicad notebook with a list of standard reference designators. I appreciate your pointing me in the right direction.