spectacles = upanetram [ उपनेत्रम् ]or more accurately taking the cue from the English word which is in plural it makes sense to use a form that is nitya-dwivachanAntaH[For ever in dual number] => upanetre [ उपनेत्रे ]
There is no specific collective noun for 'spectacles' (or 'eyeglasses), most likely because spectacles aren't normally found in groups. However, if there is a group of spectacles, any noun suitable for the situation can function as a collective noun; for example a box of spectacles, a pile of spectacles, a row of spectacles, etc.
Spectacles is an older word for eyeglasses. If spectacles were opaque, no one could see through the lenses. The glass (now plastic) used in spectacles must be clear and without scratches.
There is no specific collective noun for spectacles. Use the collective noun appropriate for the situation; for example a display of spectacles (in a shop), a collection of spectacles (in a drawer), a spectrum of spectacles (in an alliteration or a poem), etc.
"Specs" is an informal word for spectacles, although many people don't use the word at all, and use "glasses" instead.
Incarnation.Avatar is a Sanskrit word specially refers to a brave man or a warrior who is blessed by Good.
In Sanskrit, 'prameya' is the word for algorithm.
Indigo is called "Nila" in Sanskrit.
In Sanskrit, jamun is called Jambu.
Clothes in Sanskrit are called "Vastra."
The Sanskrit word for wheat is "godhum."
VAYU is what you call air in sanskrit.
The word for LITCHI in Sanskrit is "Lichikā" or "Lichu".
Light in Sanskrit is called "प्रकाश" (prakāśa).
Sweet in Sanskrit is called "मधुर" (Madhura).
In Sanskrit, kite is called "patanga" or "chitrakarika."
In Sanskrit 'gem' is called 'ratnam(n)[ रत्नम्]'.
In Sanskrit 'oyster' is called 'shuktiH(f)[शुक्ति:]'