Friends are good to have. Attachment is what makes the world go ‘round.
The Hebrew word for friend is חָבֵר (hah-VEHR – referring to a male) or חָבֵרָה (hah-veh-RAH – referring to a female).
The plurals are חֲבֵרִים (hah-veh-REEM) and חֲבֵרוֹת (hah-veh-ROHT).
Use the term to refer to a friend of the same sex – otherwise you would probably be understood as talking about your boyfriend or girlfriend.
The root of these words is ח.ב.ר. (h.b.r), which is the concept of connection.