Verterbukh

Strange that when I search for װידער אַ מאָל I only get this entry: װידערהאָלן. Which led me to think that this phrase wasn't in the dictionary. This was confirmed further when I looked up straight װידער and still didn't find װידער אַ מאָל. Only once I looked up מאָל, did I see װידער אַ מאָל. I wonder if there is something wrong with the search algorithm on this website that it wouldn't take me to מאָל and only to this random entry װידערהאָלן. The website really should have taken me to מאָל to find what I was looking for.

In the Khanuke song 'Oy Khanuke', does 'geshvinder' mean 'faster' -- or is the 'er' suffix incorrect (and perhaps inserted solely to rhyme with 'kinder')?

עס וואלט זיכער צוניץ קומען צוצוגעבן דעם אויסדרוק "מאכן אן אומוועג", וואס איז גלייך צו אנלייגן וועג

A word, genderless, for "parent"? As in "You must bring a permission slip signed by a parent"?

Another how come no plural?

The entry for shpingeveb also shows no plural, though for simple web, there is geveb(n)

I used shpingeveb(n) when multiple webs were spun.

How come no plural?

What's the plural?

In the transcription (and in the result list), it's
MESHUGENERER

(I looked up meshugener

In Yehoash's Tanakh, we came across this word (without 'keyn' and without 'on a' before it). Neither your dictionary nor Weinreich's showed the meaning.
We did find it in Harkavy's dictionary: any
Even if that meaning is now obsolete, I think your dictionary should include that meaning and show the status as obsolete.