WordNet sense 1 (plastic surgery to remove wrinkles and other signs of aging from your face; an incision is made near the hair line and skin is pulled back and excess tissue is excised):

facelift, lift, rhytidectomy, rhytidoplasty, face lift, cosmetic surgery, face lifting

WordNet sense 2 (inconclusive as to outcome; close or just even in a race or comparison or competition):

head-to-head, neck and neck

WordNet sense 3 (not conclusive; not putting an end to doubt or question):

inconclusive