Here is a typical Kana chart presented in gojūon order:
In English, I refer to the first column in the chart as the 'vowels' and I refer to every other column in the chart with the first letter of each Kana in English (K, S, T...).
How would I refer to a particular column of this chart in spoken Japanese?
If for example, I was struggling to remember a word such as 'りんご' but I could only remember the consanant part from the final consonant + vowel pair (ri,n,g—), how could I say...
"I think the last kana was a 'g—' kana..."