Holy Lance
The Holy Lance, also known as the Lance of Longinus (named after Saint Longinus), the Spear of Destiny, or the Holy Spear, according to the Gospel of John, is the lance that pierced the side of Jesus as he hung on the cross.
Makhaira
The Koine of the New Testament uses the word "makhaira" to refer to a sword generically, not making any particular distinction between native blades and the gladius of the Roman soldier. This ambiguity appears to have contributed to the apocryphal "malchus", a supposedly short curved sword used by Peter to cut off the ear of a slave named Malchus during the arrest of Jesus. While such a weapon clearly is a "makhaira" by ancient definition, the imprecise nature of the word as used in the New Testament cannot provide any conclusive answer.