Travelling with Emirates airline, can I keep a nail clipper which has a small knife built into it, tweezer or razors in my hold baggage, not in a carry-on bag?
Yes, of course you may. Weapons and such like are of concern when in hand luggage (so might be used in the cabin). Luggage in the hold is not accessible during the flight so as long as not explosive, inflammable, radioactive etc almost anything goes.
What Emirates state is not allowable in checked luggage is:
Personal motorised vehicles are not allowed on board
For safety reasons, we can’t accept personal motorised vehicles such as hoverboards, mini-Segways and smart or self-balancing wheels on our flights. We can’t carry them either as checked-in baggage or as hand luggage as they contain large lithium batteries. This regulation still applies even if you’re connecting to our flights from an airline that has accepted them.
Items containing explosives are not allowed on board
All fireworks and any other items containing explosives, for example Christmas crackers, firecrackers, bottle rockets, poppers and sparklers are forbidden to be carried either as carry-on baggage or as checked baggage on our flights.
There are some other items, depending on for example any interlining carrier, but these do not disallow soap, shampoo are similar liquids.