Cone holders are objects used to hold ice cream cones, and can be made from a variety of materials. The crossword solutions for the term 'cone holders' include FIRS (4 letters), RETINAS (7 letters), PINES (5 letters), and RETINAE (7 letters). FIRS is an acronym for Fire Resistant Insulated Sleeves, which are often used to hold ice cream cones in restaurants. RETINAS and RETINAE are both plural forms of the word retina, which is a thin layer of tissue at the back of the eye that helps to focus light. PINES is a type of tree, and pine cones can also be used as holders for ice cream cones.